Answer:
x = 9
Explanation:
➼first, let's put it into an equation
(x - 8) + (2x - 4) = 15
➼next, add up the common terms
-since there are two variables with x and two number variables, we will rewrite the equation and solve
(-8 - 4) + (2x + x) = 15
-8 - 4 = -12
2x + x = 3x
plug in:
-12 + 3x = 15
➼now get x alone by first getting rid of 12
-do this by doing opposite and adding 12 to everything
-12 + 12 = 0
12 + 15 = 27
plug in:
3x = 27
divide 3 both sides
27/3 = 9
3/3 = 0
➼x = 9