CPM Homework Help : A2C Problem 7-25

Solve each equation below for x. Homework Help ✎
1. 2x + x = b
2. 2ax + 3ax = b
3. x + ax = b

Hint (a):

Combine like terms.

Answer (a):

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

Hint (b):

Combine like terms. Then divide both sides by 5a to solve for x.

Hint (c):

Factor out an x on the left side. Solve for x by dividing.

Answer (c):

$\textit{x}=\frac{\textit{b}}{1+\textit{a}}$