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3x=6y-3
2y-1=6y-3
-4y=-2
y=1/2
x=1-1
x=0
6y-3x=3
-x-2y=1|*3
-3x+6y=3
-3x-6y=3
-3x+6y=3
----------
-6x=6
x=-1
2y-1=-1
2y=-1+1
2y=0
y=0
spr:
2y-1=x
2*0-1=-1
0-1=-1
-1=-1
6y-3x=3
2y=x+1 /:2
6y-3x=3
y=1/2x+1/2
6y-3x=3
y=1/2x+1/2
6(1/2x+1/2)-3x=3
y=1/2x+1/2
3x+3-3x=3 /-3
y=1/2x+1/2
0x=0
---->równania sprzeczne