реши уравнения:
3х - 2=43; 3х = 43 + 2 = 45; х = 45 : 3 = 15
6х - 8=4х - 2; 6х - 4х = -2 + 8; 2х = 6; х = 6 : 2 = 3
8(х+3) - 2х=3х - 12; 8х + 24 - 2х = 3х - 12; 8х - 2х - 3х = -12 - 24; 3х = -36; х = -36 : 3 = -12
