{х+у=7
{5х+2у=14
помогите)
Смотреть ответ Реклама Реклама Svetlashka11 Svetlashka11 Х=7-у
5(7-у)+2у=14
35-5у+2у-14=0
-3у=-21
-у=-7
у=7
х=7-7
х=0
(0;7) Реклама Реклама
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