5x 2 4x 7 2x 2 3x 4 July 8, 2019 16 32 64 128 5x 2 3x 8 4x 7 2x 2 6 5x 4x 2 5 x 7 = 35 5x - 7 = 2 - 4x 7-3x =1-5x 7x − 2(5 − 4x) = −13