1 2 7 9 x 4 2 5x July 8, 2019 16 32 64 128 1 divided by 2 7 9 x 4 2 5x 1 7/9 / x = 5 4/9 / 2 5/8 1 - 5/9 х 2 4/7 1 − 7 ( 4 + 2 x ) = − 9 − 4 x 1 7 x = − 4 2 5
