6x 1 5x 7 2 July 8, 2019 16 32 64 128 (- 4x 2 6x 1 )+( 5x 7 6x 2 5x 4 )= 1 7 4x 3 − 4x 2 6x 1 )+( 5x 7 answer 2x 1 5x 6x 7 7 5x 2 6 6x 1 6x 7 )+( 8x 2 5x 1 1 2 6x 4 )-( 5x 7 )= 11 6x - 7 5 6/7x 5