Предмет: Алгебра, автор: drepaanastasia175

реши способом алгебраического сложения
{3х+у=1
{2х-у=7​

Ответы

Автор ответа: ananevavera750
1

Ответ:

3х+2х=5х

1+7=8

5х=8

х=8÷5

х=1,6

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