номер 105 сделайте пж

1)12x-60
x=60:2
x=30
2)33y=132
y=132:33
y=4
3)51z=357
z=357:51
z=7
4)2x-15=13
2x=13+15
2x=28
x=28:2
x=14
5)7y-25=45
7y=45+25
7y=70
y=70:7
y=10
6)130-4x=70
4x=70-130
4x=-60
x=-60:4
x=-15
7)49-3x=34
3x=34-49
3x=-15
8)9y-89=55
9y=55+89
9y=144
y=144:9
y=16
9)74-8z=2
8z=2-74
8z=-72
z=-72:8
z=-9

1) 12x = 60
x = 60/12
x = 5
2) 33y = 132
y = 132/33
y = 4
3)51z = 357
z = 7
4) 2x-15 = 13
2x = 13+15
2x = 28
x = 28/2
x = 14
5) 7y-25 = 45
7y = 45+25
7y = 70
y = 70/7
y = 10
6) 130-4x = 70
4x = 130 - 70
4x = 60
x = 60/4
x = 15
7) 49-3x = 34
3x = 49-34
3x = 15
x = 15/3
x = 5
8) 9y-89=55
9y = 55+89
9y = 144
y = 144/9
y = 16
9) 74-8z = 2
8z = 74-2
8z = 72
z = 72/8
z = 9
Всё) Не забудь сказать спасибо)