The chef had 17 - 12 = <<17-12=5>>5 meals left after lunch.

So, the chef has 5 + 5 = <<5+5=10>>10 meals for dinner.

# Answer

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<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
In a restaurant, the chef prepared 17 meals to sell for lunch. During lunch, he sold 12 meals. After lunch, the chef prepared another 5 meals for dinner. How many meals does the chef have for dinner, assuming he can use the remaining lunch meals as well?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
10
In a restaurant, the chef prepared 17 meals to sell for lunch. During lunch, he sold 12 meals. After lunch, the chef prepared another 5 meals for dinner. How many meals does the chef have for dinner, assuming he can use the remaining lunch meals as well?
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