Предмет: Математика, автор: vlad13101

Нужен только 19. Пожалуйста!!

Приложения:

Ответы

Автор ответа: Бека0414

4x-5y=-2/ ×3. 12x-15y=- 6.
3x+2y=-13/ ×(-4) -12x-8y=52.

-23y=46. y= 46÷ (-23)= -2. y=-2

y=-2
4x-5×(-2)=-2. 4x+10=-2. 4x=-2- 10

4x=-12. x=-12÷4= -3. Ответ: y=-2. x=-3

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