18 3 x 4 10 July 8, 2019 16 32 64 128 100 18 3 х 4 18 7x 10 3 x 4 18 - 7х = 10 - 3(x 4) 2 x 3 )+ 18 4 10x 9 )= 72 18 9 x (- 4 3 10 x 2 10x 2 18 x 3 14x 4 18 ÷ 3