Предмет: Математика, автор: XxxtentactionxxX17

помогите пожалуйста не могу решить очень тупой

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Автор ответа: annabogdanova2090

х=5-у
подставляем в первое уравнение
25-10у+у2 +у2= 13
2у2-10у+12=0
у2-5у+6=0
у=3 и у=2
х=2 и х=3

XxxtentactionxxX17: спасибо большое))))

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