<|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 [9, 16, 28, 32], create an equation that equals 53. You can use basic arithmetic operations (+, -, *, /) and each number can only be used once. Your equation must be fully expanded with each step shown in <think>...</think> tags. Show your work and return the final equation and answer in <answer>...</answer> tags, for example <answer>(28 + 16) * 9 - 32 = 53</answer>.<|im_end|>
<|im_start|>assistant
Let me solve this step by step.
<think>