Предмет: Алгебра, автор: dan4blog

Помогите пж...........

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Ответы

Автор ответа: solomiyatim

1

х-5у=8, (1)

х+2у=15; (2)

Из (1): х=8+5у

Подставляем в (2): 8+5у+2у=15

у=1

х=13

Ответ: (13;1).

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