Предмет: Математика, автор: dudkinaarina20

Упростите выражения)15 балов
-(7-х)+(3х-14)=...
-(х+4)-(2х-8)=....
(21-а)-(20-2а)=...
-(13+б)+(-б-13)

Ответы

Автор ответа: Pupil1111
0
1) 4х-21
2)4-3х
3)1+а
4) -26-2в
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