### Home > AC > Chapter 3 > Lesson 3.1.2 > Problem 3-13

3-13.

Write the equation represented in each diagram below on your paper. For each part, simplify as much as possible and then solve for . Be sure to record your work on your paper.

Use the eTools below to help solve the problems.

Click the link at right for the full version of the eTool: *3-13a HW eTool*

Click the link at right for the full version of the eTool: *3-13b HW eTool*