Если можно - досконально, без нагих ответов

1) 18=3y+3
18-3=3y
15=3y
5=y
2) 6x+10=5x+15
6x-5x=15-10
x=5
3) -5n-16=3n
-16=3n+5n
-16=8n
-2=n
4) 8-5y=10-4y
8-10=-4y+5y
-2=y
5) 9m-8=6m+7
9m-6m=7+8
3m=15
m=5
6) 36-9n=-5n
36=-5n+9n
36=4n
9=n
7) 15-8x=2-9x
15-2=-9x+8x
13=x
8) -6m+32=2m
32=2m+6m
32=8m
4=m
9) 10z+7=9z+5
10z-9z=5-7
z=-2
10) 10-9y=70-6y
10-70=-6y+9y
-60=3y
-20=y

Ответ:

Пошаговое изъясненье:

18 = 3y + 3

3y = 18 - 3

3y = 15

y = 15 : 3

y = 5

-----------

6x + 10 = 5x + 15

6x - 5x = 15 - 10

x = 5

------------

-5n - 16 = 3n

-5n - 3n = 16

-8n = 16

n = 16 : (-8)

n = -2

--------------

8 - 5y = 10 - 4y

5y - 4y = 8 - 10

y = -2

-------------------

9m - 8 = 6m + 7

9m - 6m = 7 + 8

3m = 15

m = 15 : 3

m = 5

--------------

56 - 9n = -5n

9n - 5n = 56

4n = 56

n = 56 : 4

n = 14

------------------

15 - 8x = 2 - 9x

9x - 8x = 2 - 15

x = -13

----------------------

-6m + 32 = 2m

2m + 6m = 32

8m = 32

m = 32 : 8

m = 4

---------------

10z + 7 = 9z + 5

10z - 9z = 5 - 7

z = -2

-------------------

10 - 9y = 70 - 6y

9y - 6y = 10 - 70

3y = -60

y = -60 : 3

y = -20