Odpowiedzi

2010-01-27T15:00:52+01:00
Y+2-(3-x)=0
x-2=5-(2-y)

y+2-3+x=0
x-2=5-2+y

x+y=1
x-y=5
2x=6
x=3

3+y=1
y=-2
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2010-01-27T15:02:42+01:00
Y+2-(3-x)=0
x-2=5-(2-y)

y+2-3+x=0
x-2=5-2+y

y+x=-2+3
x-y=5-2+2

y+x=1
-y+x=5
(pozioma kreska)

2x=6 /:2
x=3
y+3=1
y=1-3


y=-2
x=3
2010-01-27T15:05:29+01:00
Y+2-(3-x)=0
x-2=5-(2-y)

y+2-3+x=0
x-2=5-2+y

y+x=1
-y+x=1
_______________
2x=2 |/2
y+x=1

x=2
y+2=1

x=2
y=-1