Question 1087470
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1.  Find the intersection point of these lines.
    It is the center of the circle.

    To find it, solve the system.


    The center is (x,y) = (-1,-3).


2. The distance from the center to the point (-5,0) is {{{sqrt(4^2 + 3^2)}}} = 5.


3.  The equation of the circle is 

    {{{(x+1)^2 + (y+3)^2}}} = 25.
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