<|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
 Selene buys some instant cameras at $110 each and three digital photo frames at $120 each. She gets a 5% discount on all the items she purchased and pays $551 in all. How many instant cameras did she buy? 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
1
Selene buys some instant cameras at $110 each and three digital photo frames at $120 each. She gets a 5% discount on all the items she purchased and pays $551 in all. How many instant cameras did she buy?
test