Consider the circle defined by the equation $x^2 +6x +y^2 +8y =0$.  Find the sum of the coordinates of the center of the circle.
Question:
Consider the circle defined by the equation $x^2 +6x +y^2 +8y =0$.  Find the sum of the coordinates of the center of the circle.
Answer:
Let's think step by step.

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Consider the circle defined by the equation $x^2 +6x +y^2 +8y =0$.  Find the sum of the coordinates of the center of the circle.
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