układ równań
3x-1=y-2
4x-3=-2(y-2)
3x-y=-1
4x-3=-2y+4
3x-y=-1 /*2
4x+2y=7
6x-2y=-2
10x=5
x=1/2
3*1/2-y=-1
1,5-y=-1
-y=-2,5
y=2,5
x=0,5
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3x-1=y-2
4x-3=-2(y-2)
3x-y=-1
4x-3=-2y+4
3x-y=-1 /*2
4x+2y=7
6x-2y=-2
4x+2y=7
10x=5
x=1/2
3*1/2-y=-1
1,5-y=-1
-y=-2,5
y=2,5
x=0,5
y=2,5