7 1 2 x 4 5 6 July 8, 2019 16 32 64 128 1 2 3 x 4 5 6 7 8 7 6 х 3 4 1 2 x 5 6 4 7 x 5 6 1 2 3 6 7 chia 1 2 x 3 4 5 8 1 2 x 4 3 5 6 divided by 7 8 7 1/4 x 6 4 = 7 − 6(5x − 1) 7 x 2 1/4