# Coordinated Triangle

Geometry Level pending

Let $$A, B$$ and $$C$$ be the intersection points between line $$r:\quad x+y-2=0$$, line $$s:\quad x-7y+2=0$$ and the $$x$$-axis. The sum of the coordinates of the gravity center of the $$ABC$$ triangle is $$\text{__________}$$.

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