Answer:
x = 2
Explanation:
Simplifying
4(2x + -1) = 12
Reorder the terms:
4(-1 + 2x) = 12
(-1 * 4 + 2x * 4) = 12
(-4 + 8x) = 12
Solving
-4 + 8x = 12
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '4' to each side of the equation.
-4 + 4 + 8x = 12 + 4
Combine like terms: -4 + 4 = 0
0 + 8x = 12 + 4
8x = 12 + 4
Combine like terms: 12 + 4 = 16
8x = 16
Divide each side by '8'.
x = 2
Simplifying
x = 2
hope it helps