7х 3 2 2х 1 July 8, 2019 16 32 64 128 3 7х 2 =- 2х 3 13 7 х 5 )+ 1 2 3 2х 1 2х 2 7х 3 х 2 9 1 14х 2 2х 3 7х 4 14 2 7х-1 3х+3 6х=2 2(7х - 7) = 7(2х - 3) + 7
