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<language code="eng" name="English"/>
<language code="spa" name="Spanish"/>
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<caption cuepoint="1.000">
<non> </non>
<eng>Today, we are going to expand our learning</eng>
<spa>Hoy vamos a ampliar nuestro aprendizaje</spa>
</caption>
<caption cuepoint="2.000">
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<eng>about expressions to learn about solving equations.</eng>
<spa>sobre expresiones para aprender a resolver ecuaciones.</spa>
</caption>
<caption cuepoint="6.000">
<non> </non>
<eng>Our objective today is to find the unknown variable</eng>
<spa>Nuestro objetivo de hoy es encontrar la variable desconocida</spa>
</caption>
<caption cuepoint="8.000">
<non> </non>
<eng>in an equation by using the inverse operation.</eng>
<spa>de una ecuación usando la operación inversa.</spa>
</caption>
<caption cuepoint="12.000">
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<eng>An equation includes two expressions set equal.</eng>
<spa>Una ecuación incluye dos expresiones iguales.</spa>
</caption>
<caption cuepoint="15.000">
<non> </non>
<eng>Here, we have some examples and non-examples of equations.</eng>
<spa>Aquí tenemos algunos ejemplos y no ejemplos de ecuaciones.</spa>
</caption>
<caption cuepoint="19.000">
<non> </non>
<eng>It's important to note that equations contain an equal sign,</eng>
<spa>Es importante señalar que las ecuaciones tienen un signo de igual,</spa>
</caption>
<caption cuepoint="22.000">
<non> </non>
<eng>and sometimes equations can include variables,</eng>
<spa>y, a veces, las ecuaciones pueden incluir variables,</spa>
</caption>
<caption cuepoint="25.000">
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<eng>as well as constants.</eng>
<spa>así como constantes.</spa>
</caption>
<caption cuepoint="27.000">
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<eng>Here, we have an equation,</eng>
<spa>Aquí, tenemos una ecuación,</spa>
</caption>
<caption cuepoint="28.000">
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<eng>and we might be asked to solve this equation,</eng>
<spa>y se nos puede pedir que resolvamos esta ecuación,</spa>
</caption>
<caption cuepoint="31.000">
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<eng>which means we must determine the value of the variable</eng>
<spa>significa que debemos calcular el valor de la variable</spa>
</caption>
<caption cuepoint="33.000">
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<eng>that will make the statement true.</eng>
<spa>que hará que la declaración sea verdadera.</spa>
</caption>
<caption cuepoint="35.000">
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<eng>For example, when we see the equation two x equals six,</eng>
<spa>Por ejemplo, cuando vemos la ecuación dos x es igual a seis,</spa>
</caption>
<caption cuepoint="39.000">
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<eng>we ask ourselves,</eng>
<spa>nos preguntamos,</spa>
</caption>
<caption cuepoint="40.000">
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<eng>"The product of two and what number is equal to six?"</eng>
<spa>"¿El producto de dos y qué número es igual a seis?"</spa>
</caption>
<caption cuepoint="44.000">
<non> </non>
<eng>You might already see the value of x as three,</eng>
<spa>Es posible que ya veas el valor de x como tres,</spa>
</caption>
<caption cuepoint="47.000">
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<eng>but I want to show you a strategy on how</eng>
<spa>pero quiero mostrarte una estrategia sobre cómo</spa>
</caption>
<caption cuepoint="49.000">
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<eng>to use inverse operations to solve equations,</eng>
<spa>usar operaciones inversas para resolver ecuaciones,</spa>
</caption>
<caption cuepoint="52.000">
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<eng>so you can find the value of x even when you are asked</eng>
<spa>para que puedas encontrar el valor de x incluso</spa>
</caption>
<caption cuepoint="55.000">
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<eng>to solve more difficult equations.</eng>
<spa>cuando resuelvas ecuaciones más difíciles.</spa>
</caption>
<caption cuepoint="58.000">
<non> </non>
<eng>In this chart, you will see what are the inverse operations.</eng>
<spa>En este cuadro, verás cuáles son las operaciones inversas.</spa>
</caption>
<caption cuepoint="62.000">
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<eng>Inverse operations are pairs of mathematical operations</eng>
<spa>Operaciones inversas son pares de operaciones matemáticas</spa>
</caption>
<caption cuepoint="65.000">
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<eng>that undo each other.</eng>
<spa>que se deshacen entre sí.</spa>
</caption>
<caption cuepoint="67.000">
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<eng>In other words, these operations cancel each other out.</eng>
<spa>En otras palabras, estas operaciones se anulan entre sí.</spa>
</caption>
<caption cuepoint="70.000">
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<eng>As you can see in this chart,</eng>
<spa>Como puedes ver en este gráfico,</spa>
</caption>
<caption cuepoint="72.000">
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<eng>addition is the opposite of subtraction,</eng>
<spa>la suma es lo opuesto a la resta,</spa>
</caption>
<caption cuepoint="74.000">
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<eng>with the reverse of these also being true.</eng>
<spa>siendo también cierto lo contrario.</spa>
</caption>
<caption cuepoint="77.000">
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<eng>Furthermore, we can see</eng>
<spa>Además, podemos ver</spa>
</caption>
<caption cuepoint="79.000">
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<eng>that multiplication is the opposite of division,</eng>
<spa>que la multiplicación es lo contrario de la división,</spa>
</caption>
<caption cuepoint="83.000">
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<eng>with the reverse of that being true as well.</eng>
<spa>siendo también cierto lo contrario.</spa>
</caption>
<caption cuepoint="86.000">
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<eng>Now we are given an equation</eng>
<spa>Ahora nos dan una ecuación</spa>
</caption>
<caption cuepoint="87.000">
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<eng>and asked to solve for the unknown variable of x.</eng>
<spa>y se nos pide resolver la variable desconocida de x.</spa>
</caption>
<caption cuepoint="91.000">
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<eng>We will use inverse operations to solve</eng>
<spa>Usaremos operaciones inversas para resolver</spa>
</caption>
<caption cuepoint="93.000">
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<eng>for the variable x in this equation.</eng>
<spa>la variable x en esta ecuación.</spa>
</caption>
<caption cuepoint="96.000">
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<eng>The variable x is next to the constant five,</eng>
<spa>La variable x está al lado de la constante cinco,</spa>
</caption>
<caption cuepoint="98.000">
<non> </non>
<eng>implying that five is being multiplied by five.</eng>
<spa>lo que implica que cinco se multiplica por cinco.</spa>
</caption>
<caption cuepoint="102.000">
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<eng>So we must ask ourselves,</eng>
<spa>Entonces debemos preguntarnos,</spa>
</caption>
<caption cuepoint="104.000">
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<eng>"What is the inverse operation of multiplication?"</eng>
<spa>"¿Cuál es la operación inversa de la multiplicación?"</spa>
</caption>
<caption cuepoint="108.000">
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<eng>Division is the inverse operation of multiplication.</eng>
<spa>La división es la operación inversa de la multiplicación.</spa>
</caption>
<caption cuepoint="111.000">
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<eng>To keep the equation balanced,</eng>
<spa>Para mantener la ecuación balanceada,</spa>
</caption>
<caption cuepoint="113.000">
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<eng>the operation we use on one side of the equation</eng>
<spa>la operación que usamos en un lado de la ecuación</spa>
</caption>
<caption cuepoint="116.000">
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<eng>we must also use on the other side of the equation.</eng>
<spa>también debemos usarla en el otro lado de la ecuación.</spa>
</caption>
<caption cuepoint="120.000">
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<eng>When we divide both sides of the equation by five,</eng>
<spa>Cuando dividimos ambos lados de la ecuación por cinco,</spa>
</caption>
<caption cuepoint="123.000">
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<eng>the five divided by five on the left side</eng>
<spa>el cinco dividido por cinco en el lado izquierdo</spa>
</caption>
<caption cuepoint="125.000">
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<eng>of the equation can be simplified to one x or x.</eng>
<spa>de la ecuación se puede simplificar en una x o x.</spa>
</caption>
<caption cuepoint="129.000">
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<eng>On the right side of the equation,</eng>
<spa>En el lado derecho de la ecuación,</spa>
</caption>
<caption cuepoint="131.000">
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<eng>20 divided by five can be simplified to four.</eng>
<spa>20 dividido por cinco se puede simplificar a cuatro.</spa>
</caption>
<caption cuepoint="135.000">
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<eng>Here, we are left with an equation</eng>
<spa>Aquí, nos quedamos con una ecuación</spa>
</caption>
<caption cuepoint="137.000">
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<eng>that states the value of the variable x.</eng>
<spa>que establece el valor de la variable x.</spa>
</caption>
<caption cuepoint="139.000">
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<eng>X equals four.</eng>
<spa>X es igual a cuatro.</spa>
</caption>
<caption cuepoint="142.000">
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<eng>Now let's look at another example.</eng>
<spa>Ahora veamos otro ejemplo.</spa>
</caption>
<caption cuepoint="145.000">
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<eng>The equation x divided</eng>
<spa>La ecuación x dividida</spa>
</caption>
<caption cuepoint="147.000">
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<eng>by four equals nine contains division.</eng>
<spa>por cuatro es igual a nueve contiene la división.</spa>
</caption>
<caption cuepoint="151.000">
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<eng>The inverse operation of division is multiplication.</eng>
<spa>La operación inversa de la división es la multiplicación.</spa>
</caption>
<caption cuepoint="154.000">
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<eng>Since x is being divided by four,</eng>
<spa>Ya que x se divide por cuatro,</spa>
</caption>
<caption cuepoint="157.000">
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<eng>so we must multiply by four on both sides of the equation.</eng>
<spa>multiplicamos por cuatro en ambos lados de la ecuación.</spa>
</caption>
<caption cuepoint="161.000">
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<eng>Four divided by four is one.</eng>
<spa>Cuatro dividido por cuatro es uno.</spa>
</caption>
<caption cuepoint="163.000">
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<eng>So we can just write x on the left side,</eng>
<spa>Podemos escribir x en el lado izquierdo,</spa>
</caption>
<caption cuepoint="165.000">
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<eng>and nine times four is thirty-six.</eng>
<spa>y nueve por cuatro es treinta y seis.</spa>
</caption>
<caption cuepoint="168.000">
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<eng>Therefore, x equals thirty-six.</eng>
<spa>Por lo tanto, x es igual a treinta y seis.</spa>
</caption>
<caption cuepoint="172.000">
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<eng>It's important to note that you can check your answer</eng>
<spa>Es importante señalar que puedes comprobar tu respuesta</spa>
</caption>
<caption cuepoint="174.000">
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<eng>by instituting the value for x back</eng>
<spa>volviendo a incluir el valor de x</spa>
</caption>
<caption cuepoint="176.000">
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<eng>into the original equation to determine</eng>
<spa>en la ecuación original para determinar</spa>
</caption>
<caption cuepoint="178.000">
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<eng>if it creates a true statement.</eng>
<spa>si crea una afirmación verdadera.</spa>
</caption>
<caption cuepoint="180.000">
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<eng>For example, in our first example,</eng>
<spa>Por ejemplo, en nuestro primer ejemplo,</spa>
</caption>
<caption cuepoint="182.000">
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<eng>we solved for x and got x equals four.</eng>
<spa>resolvimos x y obtuvimos que x es igual a cuatro.</spa>
</caption>
<caption cuepoint="186.000">
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<eng>When we substitute four in for x in the original equation,</eng>
<spa>Cuando sustituimos x por cuatro en la ecuación original,</spa>
</caption>
<caption cuepoint="189.000">
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<eng>we get five times four equals twenty,</eng>
<spa>obtenemos cinco por cuatro igual a veinte,</spa>
</caption>
<caption cuepoint="192.000">
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<eng>which we know is a true statement.</eng>
<spa>que sabemos que es una afirmación verdadera.</spa>
</caption>
<caption cuepoint="194.000">
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<eng>When we substitute thirty-six in for x in the original equation,</eng>
<spa>Cuando sustituimos treinta y seis por x en la ecuación original,</spa>
</caption>
<caption cuepoint="198.000">
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<eng>we get thirty-six divided by four equals nine.</eng>
<spa>obtenemos treinta y seis dividido por cuatro igual a nueve.</spa>
</caption>
<caption cuepoint="202.000">
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<eng>We also know this is mathematically true.</eng>
<spa>También sabemos que esto es matemáticamente cierto.</spa>
</caption>
<caption cuepoint="205.000">
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<eng>We have used multiplication and division</eng>
<spa>Hemos usado la multiplicación y la división</spa>
</caption>
<caption cuepoint="207.000">
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<eng>as inverse operations.</eng>
<spa>como operaciones inversas.</spa>
</caption>
<caption cuepoint="209.000">
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<eng>So now let's look at some equations</eng>
<spa>Ahora veamos algunas ecuaciones</spa>
</caption>
<caption cuepoint="211.000">
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<eng>with addition and subtraction.</eng>
<spa>con sumas y restas.</spa>
</caption>
<caption cuepoint="213.000">
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<eng>Here, we have x plus ten equals seventeen.</eng>
<spa>Aquí, tenemos x más diez igual a diecisiete.</spa>
</caption>
<caption cuepoint="217.000">
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<eng>The inverse operation to addition is subtraction.</eng>
<spa>La operación inversa a la suma es la resta.</spa>
</caption>
<caption cuepoint="221.000">
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<eng>X is being added to ten.</eng>
<spa>X se suma a diez.</spa>
</caption>
<caption cuepoint="223.000">
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<eng>So we must subtract ten from both sides to isolate x.</eng>
<spa>Entonces debemos restar diez de ambos lados para aislar x.</spa>
</caption>
<caption cuepoint="227.000">
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<eng>We find that the value of x is seven.</eng>
<spa>Descubrimos que el valor de x es siete.</spa>
</caption>
<caption cuepoint="230.000">
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<eng>We've explored the inverse operations</eng>
<spa>Hemos explorado las operaciones inversas</spa>
</caption>
<caption cuepoint="232.000">
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<eng>of division, multiplication, and addition.</eng>
<spa>de división, multiplicación y suma.</spa>
</caption>
<caption cuepoint="236.000">
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<eng>Here, we have x minus three equals twenty-one.</eng>
<spa>Aquí, tenemos que x menos tres es igual a veinte uno.</spa>
</caption>
<caption cuepoint="239.000">
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<eng>The inverse operation to subtraction is addition.</eng>
<spa>La operación inversa a la resta es la suma.</spa>
</caption>
<caption cuepoint="243.000">
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<eng>Three is being subtracted from x.</eng>
<spa>A x se le resta tres.</spa>
</caption>
<caption cuepoint="245.000">
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<eng>So we must add three to both sides</eng>
<spa>Entonces debemos sumar tres a ambos lados</spa>
</caption>
<caption cuepoint="247.000">
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<eng>of the equation to isolate x.</eng>
<spa>de la ecuación para aislar x.</spa>
</caption>
<caption cuepoint="249.000">
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<eng>The value of x is the sum of three and twenty-one,</eng>
<spa>El valor de x es la suma de tres y veinte uno,</spa>
</caption>
<caption cuepoint="252.000">
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<eng>which equals twenty-four.</eng>
<spa>que es igual a veinticuatro.</spa>
</caption>
<caption cuepoint="255.000">
<non> </non>
<eng>We went over solving equations</eng>
<spa>Repasamos la solución de ecuaciones</spa>
</caption>
<caption cuepoint="256.000">
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<eng>for an unknown variable by using inverse operations.</eng>
<spa>para una variable desconocida usando operaciones inversas.</spa>
</caption>
<caption cuepoint="260.000">
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<eng>Now that we have done a few problems together,</eng>
<spa>Ahora que hemos resuelto algunos problemas juntos,</spa>
</caption>
<caption cuepoint="263.000">
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<eng>please complete the rest of the problems</eng>
<spa>por favor completa el resto de los problemas</spa>
</caption>
<caption cuepoint="265.000">
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<eng>on your study guide.</eng>
<spa>en tu guía de estudio.</spa>
</caption>
</movieCaptions>
