Question

Solve: – 8( 2x + 4) = 80

Answer 1

x = -7

Explanation:

WORK:

1. 2x + 4= -80/8

​​ 2. 2x + 4 = 10

3. 2x = -10 - 4

4. 2x = 14

5. x = -14/2

SIMPLIFY: -14/2 = -7

I hope this helps!

Answer 2

x=3

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