Answer:
x=3
Step-by-step explanation:
Simplifying
8(2x + 4) = 80
Reorder the terms:
8(4 + 2x) = 80
(4 * 8 + 2x * 8) = 80
(32 + 16x) = 80
Solving
32 + 16x = 80
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-32' to each side of the equation.
32 + -32 + 16x = 80 + -32
Combine like terms: 32 + -32 = 0
0 + 16x = 80 + -32
16x = 80 + -32
Combine like terms: 80 + -32 = 48
16x = 48
Divide each side by '16'.
x = 3
Simplifying
x = 3
