Question

The expression 12 + 4x - 2x + 8 simplifies to what?

Answer 1

2x + 20

Explanation:

`12 + 4x -2x + 8\\\rule{150}{0.5}\\4x - 2x + 12 + 8\\\\\\\rightarrow\text{4x and -2x are like terms. 12 and 8 are also like terms.}\\\\\\\boxed{2x + 20}`

Hope this helps.