October 2021 0 3 Report
Решите систему уравнений 1) { 7x-3y=13
2) {x-2y=5
помогите пожалуйста. Смотреть ответ Реклама Реклама agasikkk agasikkk х=5+2у    7(5+2у)-3у=13  35+14у-3у=13   11у=-22  у=-2 

х=5+2(-2)  х=1   
Ответ: х=1  у=-2

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