Предмет: Математика, автор: vitalinaganus

розкрийте душки:1)3•(-x-y)
2)-(a-b+c)=
3)(8x-9y+1)•(-3)
4)-x•(2y-7)

Ответы

Автор ответа: pupil11920

2

Ответ:

Пошаговое объяснение:

1. -3х-3y

2/-24x+27y-3

-2xy+7x

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