Cheryl walked 2 miles x 3 hours = <<2*3=6>>6 miles.

Once Cheryl was 6 miles away, she walked back home, another 6 miles, so she walked 6 + 6 = <<6+6=12>>12 miles.

# Answer

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<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Cheryl got angry with her sister and decided to run away from home. She walked 2 miles every hour for 3 hours. Then she got homesick and walked back home. How many miles did Cheryl walk in total?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
12
Cheryl got angry with her sister and decided to run away from home. She walked 2 miles every hour for 3 hours. Then she got homesick and walked back home. How many miles did Cheryl walk in total?
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