Question

Решите уравнения:

2х+17=22+3х

18+3х=х+14

25-4х=12-5х

13х+27=16х+4,5 

Answer 1

2х-3х=22-17; -1х=3; х=-3

3х-х=14-18; 2х=-4; х=-2

5х-4х=12-25; х=-13

13х-16х=4.5-27; -3х=-22,5; х=7,5

Answer 2

2х+17=22+3х

2х-3х=22-17

х=-5

 

18+3х=х+14

3х-х=14-18

2х=-4

х=-2

 

25-4х=12-5х

-4х+5х=12-25

х=-13

 

13х+27=16х+4,5

13х-16х=4,5-27

-3х=-22,5

х=-22,5:(-3)

х=7,5