3 2x 5 4 x 3 7 July 8, 2019 16 32 64 128 2x 3 5 x 3 4 4x 1 7 2x 4 5 3 x 7 2 5 x 2 )+ 3 2x 3 )= 48 4 x 2 )+ 7 2x 3 5 4 x 6 7 3 2x 5 x 4 3x 7 3 2x 5 )- 2 4 4x )= 7 2x 3 5 x 3 4 4x 1 7 solve and check 3 2x 5 )/ 4 5 7 5 x )/ 6 7x 3 2x 3 5 x 3 4 x 1 3x 7 3 2x 4 3 5 x 1 ) = 10x 7 23 2x 3 )/ 5 x 3 )/ 4 4x 1 )/ 7