Автор - polinaelvira12

10x +2y = 12
-5x + 4y=-6​

Ответ

Проверено экспертом

Автор - maymr

left { {{10x+2y=12} atop {-5x+4y=-6|*2}} right. Longrightarrow left { {{10x+2y=12} atop {-10x+8y=-12}} right.

+left { {{10x+2y=12} atop {-10x+8y=-12}} right. \---------\10y=0\y=0\\10x+2*0=12\10x=12\x=1,2

Ответ: (1,2; 0)

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