<|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 [2, 3, 5, 10], create an equation that equals 20. Show your work in <think> </think> tags. This puzzle requires strategic thinking on how to use the numbers and their combinations to reach the target. You can use basic arithmetic operations (+, -, *, /) and each number can only be used once. Provide a clear step-by-step reasoning, and return the final equation and your answer in <answer> </answer> tags for example <answer> (3 * 5) - 2 = 13 </answer>.<|im_end|>
<|im_start|>assistant
Let me solve this step by step.
<think>