7 5x 4 8x July 8, 2019 16 32 64 128 7 5x 4 )- 1 8x 14 7 5x 4 )= 15 8x 7 5x 4 14 8x 5x 7 8x 4 180 7 5x 4 )- x 14 8x 12 5x 7 13x 4 8x 7 5x 4 6x 4 5x 4 8x 5 x 7 = 35