Answer:
x=7
Step-by-step explanation:
Simplifying
-1(8 + -3x) = 13
(8 * -1 + -3x * -1) = 13
(-8 + 3x) = 13
Solving
-8 + 3x = 13
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '8' to each side of the equation.
-8 + 8 + 3x = 13 + 8
Combine like terms: -8 + 8 = 0
0 + 3x = 13 + 8
3x = 13 + 8
Combine like terms: 13 + 8 = 21
3x = 21
Divide each side by '3'.
x = 7
Simplifying
x = 7
