7 1 3 x 9 3 6 July 8, 2019 16 32 64 128 1 4 9 х 3 6 7 x 3 6 13 1 3 3 6 7 9 x 12 21 7/9 / 3 1 = x / 9 3 7/9÷3 1=x÷9 3 7. 1 3 (6x
