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polly200777hhh
@polly200777hhh
July 2022
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ПОМОГИТЕ ДАЮ 25
5x−3y=13;
2x+y=3.
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iramazurk
Ответ:Объяснение:5х - 3у = 132х + у = 3Решим систему методом подстановки:5х - 3у = 13у = 3 - 2х1)5х - 3у = 135х - 3(3 - 2х) = 135х - 9 + 6х = 135х + 6х = 13 + 911х = 22х = 22 : 11х = 22)у = 3 - 2ху = 3 - 2*2у = 3 - 4у = -1Ответ: (2; -1)
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