Предмет: Алгебра, автор: gordievskayadominika

Решите систему уравнений:
x-2y=1
xy+y=12

Ответы

Автор ответа: Dcudgxyfujdctyxus

1

Лень что то писать, смотри на фото

Приложения:

Dcudgxyfujdctyxus: 2) ху+у=12
Ух+у=12
Ух=12-у
Х=12-у/у , у≠0

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