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Banger123Mary123
@Banger123Mary123
July 2022
1
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Решите систему уравнений.
х+3у=21,
2х-3у=-3;
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dimanchyck2000
Слагаем первое и второе уравнения:
3х = 18;
х = 6
у = (21 - х)/3
у = 15/3 = 5
3 votes
Thanks 1
Banger123Mary123
Я поняла)))
Banger123Mary123
))))
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Answers & Comments
3х = 18;
х = 6
у = (21 - х)/3
у = 15/3 = 5