1 9 11 x 4 7 12 July 8, 2019 16 32 64 128 1 9 11 x 4 7 12 divided by 2 3 1 9 11 x 4 7 12 2 3 1 7/-4 9-1 9 11 4/9 и 12 1/9 12 = 7 x - 9 - 11 - x
