November 2021 0 3 Report
Решите систему уравнений {x-y=4
2x+y=2 Смотреть ответ Реклама Реклама No03 No03 {х-у=4
{2х+у=2
Выразим х=у+4
2(у+4)+у=2
2у+8+у=2
3у+8-2=0
3у=-6
у=-2
х=-2+4=2 Реклама Реклама
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