4 4x 7 3 July 8, 2019 16 32 64 128 4 4x 7 3 9x 6 4x 4 3x 7 4 x 7 4x 3 3x 2y 4 4x 3y 7 4 3x 3 4x 7 4x 7 4 x 3 5 25 4 3x 5 )= 7 4x 3 3 4x 7 )- 4 12x 15 7 x 1 )+ 4 4x 3 4 3x 7 )= 64 4x 2x 7 4 4x 4 3 3 4x 7 )- 4 12x 15 simplified 4 4x 7 1 32 3x 2 15 4 7 4x 35 4x 4 7 x 3 2