Odpowiedzi

2010-03-17T14:51:56+01:00
Rozwiąż : -(- 4+2) + (-2y-4)=4-2-2y-4=-2-2y
2010-03-17T14:52:06+01:00
-(-4+2)+(-2y-4) =
= 4-2-2y-4 =
= 2-2y-4 =
= -2-2y
1 5 1
2010-03-17T14:54:23+01:00
-(-4+2)+(-2y-4)=4-2-2y-4=-2-2y