To ‘solve an equation for a particular variable’ means
to rewrite the equation with the particular
variable all by itself on one side.
The variable you are solving for cannot appear on the other side of the equation.
Conventionally, the variable being solved for is put on the lefthand side of the equation.
[beautiful math coming... please be patient]
$ax + b = c$

(original equation) 
[beautiful math coming... please be patient]
$ax = c  b$

(subtract $b$ from both sides) 
[beautiful math coming... please be patient]
$\displaystyle x = \frac{cb}{a}$

(divide both sides by $a$) 
CONCEPT QUESTIONS EXERCISE:
On this exercise, you will not key in your answer.However, you can check to see if your answer is correct. 
PROBLEM TYPES:
