Solve
\[\frac{x + 1}{x + 2} + \frac{x + 8}{x + 9} = \frac{x + 2}{x + 3} + \frac{x + 7}{x + 8}.\]
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Solve
\[\frac{x + 1}{x + 2} + \frac{x + 8}{x + 9} = \frac{x + 2}{x + 3} + \frac{x + 7}{x + 8}.\]
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
-\frac{11}{2}
Solve
\[\frac{x + 1}{x + 2} + \frac{x + 8}{x + 9} = \frac{x + 2}{x + 3} + \frac{x + 7}{x + 8}.\]
train