5 (x+2) = 10

8 (x-2) = 16

5-x=3

15-3x=15

70x+30=100

90x+90x=360 + (360+360)

2x-6x=180

2 (x+10) = 160

1/10+2/17-3/50

1/2-9/17

1/2 - (1/10+1/5

1/3*5/80

1/2 * (3/5+1/6)

3/9 * (1/8-1/10)

2/17: (1/17-1/24)

1/3 * (1/27+1/9)

1) 5 (x+2) = 10

5 х+10=10

5 х=10-10

х=0:5

х=0

2) 8 (x-2) = 16

8 х-16=16

8 х=16+16

8 х=32

х=32:8

х=4

3) 5-x=3

-х=3-5

-х=-2

х=2

4) 15-3x=15

-3 х=15-15

-3 х=0

х=0: (-3)

х=0

5) 70x+30=100

70 х=100-30

70 х=70

х = 70:70

х=1

6) 90x+90x=360 + (360+360)

180 х=1080

х=1080:180

х=6

7) 2x-6x=180

-4 х=180

х=180: (-4)

х=-45

8) 2 (x+10) = 160

2 х+20=160

2 х=160-20

2 х=140

х=140:2

х=70