prosze o rozwiązanie tego graficznie i algebraicznie ;)
x+y-6=0
x-y-2=0
I metoda
x+y=6
x-y=2
2x=8/:2
x=4
4+y=6
y=2
II metoda
x=6-y
6-y-y=2
6-2y=2
-2y=-4/:(-2)
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I metoda
x+y=6
x-y=2
2x=8/:2
x=4
4+y=6
y=2
II metoda
x+y=6
x-y=2
x=6-y
6-y-y=2
x=6-y
6-2y=2
x=6-y
-2y=-4/:(-2)
x=6-y
y=2
x=4
y=2