Предмет: Русский язык, автор: slavapruss

раскройте скобки и упростите выражение:

а) (2y+z)-(z-2y)

б) (x+3)-(5x-7)

в) (2a-1)+(3-4a)

Ответы

Автор ответа: yliavager88

11

а)2y+z-z+2y=4y
б)x+3-5x+7=-4x+10
в)2a-1+3-4a=-2a+2

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