Предмет: Математика, автор: Марианна04

{х+5у=12
{х-2у=5
Решите пожалуйста

Ответы

Автор ответа: lidochka085

0

{х+5у=12{х-2у=5 вычтем из первого уравнения системы второе
7у=7
у=1
х=12-5*1=7
ответ(7;1)

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