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-6x-6=-2y-4
-6x+2y-2=0 /:(-2)
3x-y+1=0
II sposob:
y=ax+b
-a+b=-2
a+b=4
---------- +
2b=2
b=1
a+1=4
a=3
y=3x+1
3x-y+1=0