### Home > AC > Chapter 3 > Lesson 3.1.3 > Problem 3-30

3-30.

For the following equations, draw a picture of the tiles in an equation mat, use “legal” moves to simplify, and solve for the variable. Record your work. *3-30a HW eTool* (CPM) and *3-30b HW eTool** *(CPM).

For more help solving this problem, see problem 2-105.

For part (b), assume that

.

Use the eTools below to move the tiles for each equation.

Click the link at right for the full version of the eTool: *AC 3-30a HW eTool*

Click the link at right for the full version of the eTool: *AC 3-30b HW eTool*