6+ 12x + 36 = -8.5x - 40 equations with variables

x=-4

Step-by-step explanation:

First, you would simplify the like terms on both sides of the equation to get   42 + 12x = -8.5x - 40

Second, you would want to add and subtract terms to get the X's on one side, and the whole numbers on the other.

12x + 8.5x = -40-42

Third, simply the terms.

20.5x=-82

Fourth, divide both sides by 20.5 to get the x on its own, and then you will have your answer of x=4.