Find the value of $2\left(\frac{7!}{3!4!}\right)$
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Find the value of $2\left(\frac{7!}{3!4!}\right)$
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
70
Find the value of $2\left(\frac{7!}{3!4!}\right)$
train