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catinaalieva
@catinaalieva
July 2022
1
7
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Решите систему уравнения {х=2у+5
2х+3у=-4
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vrednyulya
2(2у+5)+3у=-4
4у+10+3у=-4
7у=-14
у=-14/7=-2
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4у+10+3у=-4
7у=-14
у=-14/7=-2