4,2х+4-6=-12
4.2х-2=-12
4.2х=-12+2
4.2х=-10
42х=-100
21х=-50
4,2x + 4 - 6 = -12
4,2x - 2 = -12
4,2x = -12 + 2
4,2x = -10
x = -2,3
4,2х+4-6=-12
4.2х-2=-12
4.2х=-12+2
4.2х=-10
42х=-100
21х=-50
4,2x + 4 - 6 = -12
4,2x - 2 = -12
4,2x = -12 + 2
4,2x = -10
x = -2,3