Solve each equation below for $x$.

1. $2x+x=b$ 

   Hint (a):

   Combine like terms.

   Answer (a):

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

2. $2ax+3ax=b$ 

   Hint (b):

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

3. $x+ax=b$ 

   Hint (c):

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

   Answer (c):

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