Compute
\[\tan \left( 2 \arctan \frac{1}{5} - \frac{\pi}{4} \right).\]
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Compute
\[\tan \left( 2 \arctan \frac{1}{5} - \frac{\pi}{4} \right).\]
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
-\frac{7}{17}
Compute
\[\tan \left( 2 \arctan \frac{1}{5} - \frac{\pi}{4} \right).\]
train