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