Odpowiedzi

2009-09-03T17:23:10+02:00
=-2*10/3+(-2)*7/6=(-20/3)+(-7/3)=-27/3=-9
2009-09-03T17:31:31+02:00
2009-09-03T17:42:12+02:00
=-2*10/3-2*7/6=-20/3-14/6=-40/6-14/6=-54/6=-9