Odpowiedzi

2010-02-05T08:54:28+01:00
{x+y=1
{2x+2y=2

x=1-y
2(1-y)+y=2

x=1-y
2-2y+y=2

x=1-y
y=0

lub

y=1-x
2x+2(1-x)=2

y=1-x
2x+2-2x=2

2=2
y=0
x=0
2 4 2
2010-02-05T09:02:57+01:00
Y=1-x
2x+2(1-x)=2

y=1-x
2x+2-2x=2

2=2

y=0
x=0