Answer
x = -3
Work Step by Step
-7x + 2x + 3 - 20 = -2
Combine like terms:
-5x - 17 = -2
Add 17 to both sides:
-5x = 15
Divide both sides by -5:
-5x/(-5) = 15/(-5)
x = -3
Check with substitution:
-7(-3) + 2(-3) + 3 - 20 = -2
21 - 6 + 3 - 20 = -2
-2 = -2