<|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 [50, 25, 7, 12], create an equation from scratch that equals 100. You can use basic arithmetic operations (+, -, *, /) and each number can only be used once, along with your calculations. Show your steps in <think> </think> tags. Provide the complete equation in the expected final answer box as <answer> </answer> tags, such as <answer> (50 + 25) * (7 + 12) = 100 </answer>. <|im_end|>
<|im_start|>assistant
Let me solve this step by step.
<think>