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Ответ

Ответ дан
onyaonya
а) 4х = 16
х = 16 : 4
х = 4
б) -15 - 3х = -7х + 45
-3х + 7х = 45 + 15
4х = 60
х = 60 : 4
х = 15
в) 11 + 3х = 55 + х
3х - х = 55 - 11
2х = 44
х = 44 : 2
х = 22
г) - 3х - 17 = 8х - 105
- 3х - 8х = 17 - 105
- 11х = - 88
х = - 88 : (-11)
х = 8

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