Section Warm-Up

Simplify each of the following:

-2 + 10 = 8

4 - - 9 = 13

-3.9 - 2.4 = -6.3

2x + 3 = 15 2x = 12           x = 6

5x – 6 = x + 18 5x = x + 24           4x = 24           x = 6