If |[a,b-c,c+b],[a+c,b,c-a],[a-b,a+b,c]|...

If `|[a,b-c,c+b],[a+c,b,c-a],[a-b,a+b,c]|=0` , then the line `a x+b y+c=0` posses through the fixed point which is

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