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