12-6х+6=-2х+4
2х-6х=4-6-12
-4х=-14
х=-14:(-4)
х=3.5
3(4-2Х)+6=-2Х+4
12-6Х+6=4-2Х
18-6Х=4-2Х
14=4Х
Х=14÷4
Х=3,5
3(4 -2×3.5)+6=-2×3.5+4
-3=-3
12-6х+6=-2х+4
2х-6х=4-6-12
-4х=-14
х=-14:(-4)
х=3.5
3(4-2Х)+6=-2Х+4
12-6Х+6=4-2Х
18-6Х=4-2Х
14=4Х
Х=14÷4
Х=3,5
3(4 -2×3.5)+6=-2×3.5+4
-3=-3