katiefish05p5lgsw katiefish05p5lgsw 21-06-2018 Mathematics contestada All of the following expressions simplify to -4x + 9, except (5x + 3) + (-9x + 6) (x - 2) - (5x - 11) (6x + 1) - (-10x + 8) -4x + 2x + 9 - 2x