Предмет: Алгебра, автор: nastac894

Решите систему уравнений
{у=-х+5
у=7-3х​

Ответы

Автор ответа: dianaturlubekova
0

Ответ:

-x=-5

x=5

подставляем во второе уравнение:

7-3*5= -8

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The present perfect and the simple past 11  
That is Mr Minus, who teaches me mathematics, but he (not have) time to
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12 
You (hear) his speech on the radio last night? -Yes, I . . . -

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