### Home > CC3 > Chapter 3 > Lesson 3.1.1 > Problem 3-7

3-7.

. 3-7 HW eTool (CPM). Homework Help ✎

Move all tiles in the "minus" region to the "plus" region by flipping the tiles and remove any zero pairs. Write the equation represented.

Solve for .

Use the eTool below to help solve the problem.

Click the link at right for the full version of the eTool: CC3 3-7 HW eTool