October 2021 0 9 Report
Как решить метод алгебраического сложения? {x+y=4;4x-5y=7  Смотреть ответ Реклама Реклама daryamenshikova daryamenshikova 5х+5у=20 и 4х-5у=7 сложим 2 уравнения получим: 9х=27, Ответ:х=3, у=1

  • откуда нашли y=1?
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