7-12х -3 = -2х + 8
-12х + 2х = 8-7 + 3
-10х =4
х= 4: (-10)
х=- 0,4
7-3(4х+1)= -2х+8
7-12х-3=-2х+8
10х=-4
х=-0,4.
7-12х -3 = -2х + 8
-12х + 2х = 8-7 + 3
-10х =4
х= 4: (-10)
х=- 0,4
7-3(4х+1)= -2х+8
7-12х-3=-2х+8
10х=-4
х=-0,4.