Answer:
Step-by-step explanation:
-50 = -5x - 3(5x + 15) {Use distributive rule}
-50 = -5x + 5x *(-3) + 15*(-3)
-50 = -5x - 15x - 45 {Combine like terms}
-50 = -20x - 45 {Add 45 to both sides}
-50 + 45 = -20x
-5 = -20x {Divide both sides by -20}
-5/-20 = x
1/4 = x
