The locations of three receiving stations and the distances to the epicenter of an earthquake are contained in the following three equations: (x + 5)² + (y + 3)² = 16, (x + 1)2 + (y + 7)2= 16 and (x + 1)2 + (y-1)²= 16. Determine the location of the epicenter. Find the coordinates of the epicenter. (Type an ordered pair.)

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