<|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 [25, 5, 2, 1], create an equation that equals 25. You can use basic arithmetic operations (+, -, *, /) and each number can only be used once. Explain your steps and show the final equation for verification. Write your answer in the form <answer> [equation] = [target] </answer>.<|im_end|>
<|im_start|>assistant
Let me solve this step by step.
<think>