<|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 [5, 7, 8, 9], create an equation that equals 57. Utilize basic arithmetic operations and exponentiation or grouping for parentheses to achieve your result. Each number can only be used once in your equation. Present your work in <think></think> tags. Finish with the final equation and answer in <answer></answer> tags, like in <answer>5 + (7 + 8) * 9 = 57</answer>.<|im_end|>
<|im_start|>assistant
Let me solve this step by step.
<think>