Предмет: Математика, автор: LeraButsalenko1

Решите все,срочно нужно до 50мин

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Автор ответа: LeraandMira

0

4. 12-9х-2=-9х+10
-9х-9х= 10-12+2
-18х=0
х=0
3. -2х+5х=-2,3-8,2
3х=-10.5
х=-3,5

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