(- 7x3 9x 5x 4 July 8, 2019 16 32 64 128 What is the sum of (- 7x3 9x 5x 4 5x 3 x 9x 7 4 3x 11 5 x 7 = 35 9 - 7(x + 3) = 5 - 4x