7 4 x 9 2x July 8, 2019 16 32 64 128 3 2x 7 )= 4 9 x 2x 6 7 3 4 x 9 8 5x 7 x 9 2x 4 3 x 7 )+ 4 x 2 2x 9 7 x 1 4 2x 9 3 7 1 − x 4 1 2x 9 X 4 x 9 2x 3x 7 4 3 2x 9 )+ 4 7 x )- 12 9/7 x 4
