8(х+3)-2х=3х-12 по действиям
8(х+3)-2х=3х-12 8х+24-2х=3х-12 8х-3х-2х=-12-24 3х=-36 х=-12
8х+24-2х-3х+12=0 6х+14-3х+12=0 3х-24+12=0 3х+36=0 3х=-36 х=-12