I liczba x
II liczba y
x-y=4
x+y=-2
x=4+y
4+y+y=-2
2y=-6 /:2
y=-3
x=4-3
x=1
Odp. Sa to liczby 1 i -3
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I liczba x
II liczba y
x-y=4
x+y=-2
x=4+y
4+y+y=-2
2y=-6 /:2
y=-3
x=4-3
x=1
Odp. Sa to liczby 1 i -3