3x 2 ) ( 7x 3 9x 6 July 8, 2019 16 32 64 128 3x 2 )+( 7x 3 9x 6 3x 3 9x 2 2x )-( 7x 3 6x 2 1 3x + 2y = 6 3 x 3 = 9
