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