Предмет: Математика, автор: azza

упростить выражение и решить:6(3х+5у)+7х-5у при х+у=3

Ответы

Автор ответа: angelo4ek1996

6(3х+5у)+7х-5у

18х+30у+7х-5у

25х+25у

3(25+25)=150

Автор ответа: Boo777

6(3x+5y)+7x-5y

18x+30y+7x-5y

25x+25y

25(x+y)

25*3=75

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