Odpowiedzi

2009-11-24T17:32:14+01:00
4(-2r+s)-10,5r=-8r+4s-10,5r=4s-18,5r
2009-11-24T17:32:55+01:00
4(-2r+s)-10,5r = -8r+4s -10,5r= -18,5r+4s


Chyba tak ?
2009-11-24T17:37:50+01:00
4(-2r+s)-10,5r= (8r-4s)-10,5r= 12rs-10,5r=1,5rs

PLIS!!!!!!!!