Ответы и объяснения

  • eden01
  • светило науки
2012-10-22T00:29:49+04:00

5-3(х-2(х-2(х-2)))=2

5-3(х-2(х-2х+4))=2

5-3(х-2х+4х-8)=2

5-3х+6х-12х+24=2

-9х=-27

х=3

2012-10-22T07:01:18+04:00

5-3(х-2(х-2(х-2))) = 2
5-3(х-2(х-2х+4)) = 2
5-3(х-2х+4х-8) = 2
5-3х+6х-12х+24 = 2

-3х+6х-12х = 2-5-24

- 9х = -27
х = -27 : (-9)

х = 3