<|im_start|>system
You are a helpful assistant. You first thinks about the reasoning process in the mind and then provides the user with the answer.<|im_end|>
<|im_start|>user
Using the numbers [12, 18, 73, 5], create an equation that equals 55. You can use basic arithmetic operations (+, -, *, /) and each number can only be used once. Show your work in <think> </think> tags. And return the final equation and answer in <answer> </answer> tags, for example <answer> \(3 * 9 + 18 = 55\)</answer>. Additionally, to keep improving, consider working on similar examples with other sets of numbers.<|im_end|>
<|im_start|>assistant
Let me solve this step by step.
<think>