ՄԱԹԵՄ

)x+7=12

x=5

2)x-6=14

x=20

3)2x=22

x=22:2

x=11

4)2x-1=23

2x=23+1

2x=24

x=24:2

x=12

5)3x+1=34

3x=34-1

3x=33

x=33:3

x=11

6)4x-1=15

4x=15+1

4x=16

x=16:4

x=4

7)2*(x+1)=4

2x+2=4

2x=4-2

x=2:2

x=1

8)28+1=x+7>28-8=2-1->x=6

9)3x-1=4x-6>35-1=40-6

10)5x+1=31+9

5x=31+9-1

5x=39

x=39:5

x=7,8

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