Answer:
x = 2/5
Explanation:
-3x - 12 = -8 - 13x
Add 12 to both sides to eliminate -12 on the left side
-3x - 12 + 12 = -8 -13x + 12
-3x = -8 + 12 - 13x
-3x = 4 - 13x
Add 13x to both sides to eliminate -13x on the right side
-3x + 13x = 4 - 13x + 13x
10x = 4
Divide both sides by 10
10x/10 = 4/10
x = 2/5