### Home > CAAC > Chapter 3 > Lesson 3.2.2 > Problem 3-84

3-84.

Add two to both sides.

−2 + *x* = −*x* + 2

+2 +2

Get the variable on one side.

*x* = −*x* + 4

+*x* +*x*

2*x* = 4

*x* = 2

How does the negative sign in front of the variable change what is inside?

Follow the steps in part (a).

Follow the steps in part (a).

*x* = all numbers

Follow the steps in part (b).