Question

5+2х=0
2х+6=3+5х
5(1-х)+8х= -2-(2х+3)

Answer 1

5+2х=0
2х=0-5
2х=-5
х=-5:2
х=-2,5

2х+6=3+5х
2х-5х=3-6
-3х=-3
х=-3:(-3)
х=1

5(1-х)+8х=-2-(2х+3)
5(1-х)+8х=-2-2х+3
5-5х+8х=1-2х
5+3х=-х
3х+х=-5
4х=-5
х=-5:4
х=-1.25

Answer 2

1). -2.5
2). 1
3). 1.25