Предмет: Алгебра, автор: lol777808

Является ли пара чисел (2;-1) решаем уровнения?

5x-2y-8=0

Ответы

Автор ответа: ира250
0
1)первое число х=2 , а второе у=-1 нужно подставить и сравнить:
5х-2у-8=0
5*2-2*(-1)-8=0
10+2-8=0
12-8=0
4≠0 ⇒(2;-1) не являются решением уравнения.

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