5 x 1 )- 3 2x 4 )= 4x 7 July 8, 2019 16 32 64 128 2x 3 5 x 3 4 4x 1 7 solve and check 2x 3 5 x 3 4 4x 1 7 solve 23 2x 3 )/ 5 x 3 )/ 4 4x 1 )/ 7 5 2x 3 )- 3 2x 1 )- 48 4 x 3 )- 4 4x 7 )+ 30
