Odpowiedzi

2009-11-23T13:07:53+01:00
2009-11-23T13:48:44+01:00
4x-3y-10x-4y+7y=4x-10x-3y-4y+7y=-6x+y
2009-11-23T14:02:44+01:00
4x - 3y - 10x - 4y + 7y = -6x -3y - 4y + 7y = -6x - 7y + 7y = -6x