Question

When simplified, which of the following expressions has a coefficient of 5? -4x - 9x -4x + 9x 4x - 9x 4x - (-9x)

Answer 1

-4x + 9x is your answer

hope this helps :)

Explanation:

Answer 2

-4x - 9x = -13x
-4x + 9x = 5x
4x - 9x = -5x
4x - (-9x) = 4x + 9x = 13x
i.e. the second option is the answer