3 4 2x 1 )= 23 July 8, 2019 16 32 64 128 X 1 )-( 2x 4 )/ 3 5x 1 23 3 x 1 )+ 4 2x 1 )= 23 2 x 1 3 2x 4 23 5x 4 1 2x 3 1 1 2x 23 8 3 2x 2 1 4 23 4 1 2 + 3 4 1 - 2 = 4