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