Предмет: Алгебра, автор: NastasiaD

помогите решить систему уравнений,пожалуйста
x-y+xy=-11,
x-y-xy=1.

Ответы

Автор ответа: krugly1981

0

Решение на фото)))))))))))))))))

Приложения:

Автор ответа: NastasiaD

0

спасибо большое)

Автор ответа: krugly1981

0

пожалуйста,надеюсь,что верно.Успехов вам!)))

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