Question

Four math students post their answers to a homework problem on the board.

Three of the four students are correct. Which student got the question incorrect ?

Answer 1

4x + 24

Explanation:

1. -3x + 6 - 2x

= -5x + 6

2. -5x + 5 + 1

= -5x + 6

3. -5x + 6

4. 4x + 24 (Not giving the same answer as the other equations, so the answer is number 4.)