Odpowiedzi

2010-01-02T11:44:20+01:00
1. x+....=y
2. x-y+......=z
3. x-y+...=y-x


1. x+y-x=y
2. x-y+y-x+z=z
3. x-y+(x-x)=y-x
1 5 1
2010-01-02T11:51:45+01:00
1. x+y-x=y <chyba zgubiłeś jeden znak>
2.x-y+y-x+z=z
3.x-y=y-x=yx
1 1 1
2010-01-02T12:03:34+01:00
1.x+y-x=y
2.x-y+y-x+z=z
3.x-y+(x-x)=y-x