### Home > AC > Chapter 3 > Lesson 3.1.4 > Problem3-38

3-38.

For the following equations, draw a picture of the tiles in an equation mat like the one shown at below. Then use “legal” moves to simplify and solve for the variable. Record your work.

1. $- 2 + x = - x + 2$

1. $2 + 3 x = x + 7$

$x=2.5$

Use the eTools below to help solve the problems.
Click the link at right for the full version of the eTool: AC 3-38a HW eTool

Click the link at right for the full version of the eTool: AC 3-38b HW eTool