### Home > CC3 > Chapter 5 > Lesson 5.2.1 > Problem5-31

5-31.

Solve each of the following equations for the indicated variable. Show all of your steps.

1. $y=2x−5$ for $x$

Isolate the variable on one side.

$y=2x−5$
$+5+5$
$y+5=2x$

Solve for $x$.

$\frac{y+5}{2}=x$

1. $p=−3w+9$ for $w$

Follow the steps in part (a).

1. $2m−6=4n+4$ for $m$

Follow the steps in part (a).

$m=2n+5$

1. $3x−y=−2y$ for $y$

Follow the steps in part (a).

$y=−3x$