4х=-12 5х=4=3х-8 -2х=16=0
1) 4х=-12
х=-12÷4
х=-3
2) 5х=4=3х-8
5х-3х=-8-4
2х=-12
х=-12÷2
х=-6
3) -2х=16
х=-16÷2
х=-8