Question

Помогите
7x-4=x-16
13-5x=8-2x
4x+15=6x+17

Answer 1

1 ур-ие
7х-х=-16+46
х=-12
х=-12:6
х=-2
2 ур-ие
13-5х=8-2х
-5х+2х=-13+8
-3х=-5
х=5/3
3 ур-ие
4х-6х=17-15
-2х=2
х=-1

Answer 2

1) 7х-х=-16+4
6х=-12
х=-2
2)13-8=-2х+5х
3х=5
х=3/5
3)4х-6х=17-15
-2х=2
2х=-2
х=-1