7 8x 5 6 1 2x 5 0 July 8, 2019 16 32 64 128 6 = 8 − 5(7x − 1 - 6(- 5 - 7x) = - 8x + 2 5 8-0 7x=-4 7 7) 7 + 8x = - 2x - 5