10
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
When $A$ is doubled, the new value is 10 more than $A$. What is the value of $A$?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
10
When $A$ is doubled, the new value is 10 more than $A$. What is the value of $A$?
train