Odpowiedzi

2009-12-10T17:19:38+01:00
X+y=2
2x-y-z=0
x+2y-22=1

x=2-y
2(2-y)-y=z
2-y+2y=23

x=2-y
4-2y-y=z
y=23-2

x=2-y
4-3y=z
y=21

x=2-21
4-3*21=z
y=21


x=-19
z=-59
y=21