Предмет: Алгебра, автор: 0986098571ks

X+2y=18
-х+3у=2 поможит
​

Ответы

Автор ответа: olga150579
0
х=18-2у -18+2у=2 2у=2+18 2у=20. у=10
х=18-2*10 х=18-20. х=-2
Відповідь:(-2;10)
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