Find the center of the ellipse whose equation is $5x^2 - 20x + 9y^2 - 18y - 16 = 0.$
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Find the center of the ellipse whose equation is $5x^2 - 20x + 9y^2 - 18y - 16 = 0.$
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
(2,1)
Find the center of the ellipse whose equation is $5x^2 - 20x + 9y^2 - 18y - 16 = 0.$
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