Odpowiedzi

2010-02-26T17:56:53+01:00
(3+4y+2z) - (-2x+4y - 5z) - (x + 3y- 2z) =
3+4y-2z + 2x-4y+5z - x-3y+2z =
3 - 3y + 3x + 5z
1 5 1
2010-02-26T17:59:48+01:00
(3+4y+2z)-(-2x+4y-5z)-(x+3y-2z)=3+4y+2z+2x-4y+5z-x-3y+2z=
x-3y+9z+3