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