
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
2x = 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).