0.5х +3 = 0.2х
0.5х - 0.2х = -3
0.3х = -3
х = -3 : 0.3
х = -10
ответ: -10
0.5х+3=0.2х
0.5х-0.2х=-3
0.3х=-3
х=-10
0.5х +3 = 0.2х
0.5х - 0.2х = -3
0.3х = -3
х = -3 : 0.3
х = -10
ответ: -10
0.5х+3=0.2х
0.5х-0.2х=-3
0.3х=-3
х=-10