CPM Homework Help : A2C Problem 7-25

Solve each equation below for $x$ .

Hint (a):

Combine like terms.

Answer (a):

$\textit{x}=\frac{\textit{b}}{3}$

$2ax + 3ax = b$
Hint (b):
Combine like terms. Then divide both sides by 5a to solve for $x$ .

$x + ax = b$
Hint (c):
Factor out an $x$ on the left side. Solve for $x$ by dividing.
Answer (c):
$\textit{x}=\frac{\textit{b}}{1+\textit{a}}$