### Home > CC2 > Chapter 4 > Lesson 4.3.3 > Problem4-117

4-117.

Write the expression as shown on the Expression Mats, then simplify by making zeros and combining like terms. 4-117 HW eTool (CPM). Homework Help ✎

1. Remove all zero pairs from the mat.

How many of each tile are you left with?

$−x−1$

1. See part (a).

Use the eTool below to simplify the expressions.
Click the link at right for the full version of the eTool: CC2 4-117 HW eTool