<|im_start|>system
You are a helpful assistant. You first think about the reasoning process in the mind and then provide the user with the answer. You should try to truely solve the question by yourself without cheating.  <|im_end|>
<|im_start|>user
 A 38-year-old man has a son who is 14 years old and a daughter who is 10 years old. How many years ago was the father's age equal to the combined ages of his son and daughter multiplied by the difference of their ages? Show your work in <think> </think> tags. And return the final answer in <answer> </answer> tags.<|im_end|>
<|im_start|>assistant
Let me solve this step by step.
<think>
user
8
A 38-year-old man has a son who is 14 years old and a daughter who is 10 years old. How many years ago was the father's age equal to the combined ages of his son and daughter multiplied by the difference of their ages?
test