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