Odpowiedzi

2010-03-14T16:45:04+01:00
X+.y-x..........=y
x-z-x+2z.....................=z
x-y-2x+2y...................=y-x
2010-03-14T16:46:37+01:00
X+y-x=y
x-z-x+z+z
x=y+(-x)=y-x
Najlepsza Odpowiedź!
2010-03-14T16:46:57+01:00
X+y-x=y
x-z+x=z
x=y+(-x)=y-x