7 2x 5 )= 9x 20 July 8, 2019 16 32 64 128 3 x 5 )- 7 2x 1 )=- 9x 20 2x 7 5 x 7 = 35 5 7x-2 9x+0 8=2 2x 9 2x+7 9 =5 4
