Предмет: Алгебра, автор: Аноним

даю 15 балів знайти y з системи {5x-4y=2 {x=-2​

Ответы

Автор ответа: Matrosik2004
0

Ответ:

y = -3

Объяснение:

{5x - 4y = 2

{x = -2

Значение x = -2 , Следовательно подставляем данное значение за место x .

5 × (-2) - 4y = 2

(-10) - 4y = 2

Решаем уравнение

-4y = 2 + 10

-4y = 12

y = -3

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