Пошаговое объяснение:
1)
(175+X) - 137 = 108
175 + x - 137 = 108
38 + x = 108
x = 108 - 38
x = 70
2)
247 - (y+830) = 112
247 - y - 830 = 112
-y - 583 = 112
y = -583 - 112
y = -695
3)
69 + (87-x)=103
69 + 87 - x = 103
156 - x = 103
x = 156 - 103
x = 53
4)
(x+624)-276=357
x + 624 - 276 = 357
x + 348 = 357
x = 357 - 348
x = 9
5)
375-(x-218)=123
375 - x + 218 = 123
593 - x = 123
x = 593 - 123
x = 470
Пошаговое объяснение:
1)
(175+X) - 137 = 108
175 + x - 137 = 108
38 + x = 108
x = 108 - 38
x = 70
2)
247 - (y+830) = 112
247 - y - 830 = 112
-y - 583 = 112
y = -583 - 112
y = -695
3)
69 + (87-x)=103
69 + 87 - x = 103
156 - x = 103
x = 156 - 103
x = 53
4)
(x+624)-276=357
x + 624 - 276 = 357
x + 348 = 357
x = 357 - 348
x = 9
5)
375-(x-218)=123
375 - x + 218 = 123
593 - x = 123
x = 593 - 123
x = 470