Solve the equation.

2 (x + 4) = x + 13

A. - 3

B. - 1

C. 5

D. 7

The answer is C) x = 5

Here are the steps I did.

1. Expand (2x + 8 = x + 13)

2. Subtract 8 from both sides (2x = x + 13 - 8)

3. Simplify x + 13 - 8 to x + 5 (2x = x + 5)

4. Subtract x from both sides (2x - x = 5)

5. Simplify 2x - x to x (x = 5)

2x + 8 = x + 13

x = 5