He used 4-1=<<4-1=3>>3 pounds of beef

So he used 3*2=<<3*2=6>>6 pounds of vegetables

# Answer

6
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
John buys 4 pounds of beef.  He uses all but 1 pound in soup.  He uses twice as many pounds of vegetables as beef.  How many pounds of vegetables did he use?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
6
John buys 4 pounds of beef.  He uses all but 1 pound in soup.  He uses twice as many pounds of vegetables as beef.  How many pounds of vegetables did he use?
train