Помогите!!!Дам 76баллов.Решите Линейные Уравнения:
Способом постановки
1) 4х-3у=-1
х-5у=4
2) 2х-5у=-7
х-3у=-5
3) 2х-3у=5
х-6у=-2
Способом сложения:
1) 2х+5у+-7
3х-у=15
2) 8х+2у=11
6х-4у=11
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