X 3 7 5 July 8, 2019 16 32 64 128 X 3 7 5 8 X 3 7 5 4 X 3 7 5 14 X 3 7 5 6 X 3 7 5x X 3 7 5 2 X 3 (- 7 )= 56 X 3 7 5 1 3 x 7 )= 5x 9 X 3 5 7 10 X 3 5x 7 4y 3 x 7 )+ 5 2x 4 3 x 7 )= 5 2x 1 X 3 5 7 9 X 7 3 5 2 1 2