Odpowiedzi

2010-02-24T16:13:53+01:00
P + 2 p = x/ (- 250)
250p + 2* 160 p = x

-250p + 500p = 250 x /
250 p + 320p = x / +

820p = 251x
250p + 320 p = x

820p=251x
570p = x

820p = 251 * 570p
570p = x

......