Ответ:

Пошаговое объяснение:

1)

2(х-3)=36

x - 3 = 36 : 2

x - 3 = 18

x = 18 + 3

x = 21

2)

4(5-у)=12

5 - y = 12 : 4

5 - y = 3

y = 5 - 3

y = 2

3)

4(у+1)+11=31

4y + 4 = 31 - 11

4y + 4 = 20

4y = 20 - 4

4y = 16

y = 16 : 4

y = 4

4)

5(d-3)-12=73

5d-15 = 73+12

5d-15 = 85

5d = 85 + 15

5d=100

d = 100 : 5

d = 20

5)

(3b-2):2=18

3d - 2 = 18 * 2

3d - 2 = 36

3d = 36 + 2

3d = 38

d = 38 : 3

d = 12 2/3

6)

(5y-3):3=9

5y - 3 = 9 * 3

5y - 3 = 27

5y = 27 + 3

5y = 30

y = 30 : 5

y = 6