4 x 7 )- 6 3 2x 1 ) 9 July 8, 2019 16 32 64 128 4 x 7 )- 6 3 2x 1 )+ 9 7 x x - 4 - x 6 - x 5 x 7 = 35 7 x 4 x - 1 = 6 - 2 x 3 - 14 x 4 x 6/7
