Real numbers $x$ and $y$ satisfy the equation $x^2 + y^2 = 10x - 6y - 34$.  What is $x+y$?
Question:
Real numbers $x$ and $y$ satisfy the equation $x^2 + y^2 = 10x - 6y - 34$.  What is $x+y$?
Answer:
Let's think step by step.

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Real numbers $x$ and $y$ satisfy the equation $x^2 + y^2 = 10x - 6y - 34$.  What is $x+y$?
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