Предмет: Математика, автор: Ангел0714

Очень срочно, помогите

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Ответы

Автор ответа: piryazka

А) 3d+5a-4d+a=6a-d
Б) 3(x-5)-7(x+1)=3x-15-7x-1=-4x-16
В) 2(x-y)+2(2х-3у)=2х-2у+4х-6у=6х-8у
Г) -3х+5-(2х-2)=-3х+5-2х+2=7-5х

Автор ответа: osadtsia2004gmailcom

а) -1d+6a
б)3x-15-7x-7=-5x+22
в)2x-2y+4x-6y=6x+8y
г)-3x+5-2x+2=5x+7
я точно не знаю правильно или нет
прости если не правильно

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