<|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 [17, 2, 20, 19], create an equation that evaluates to 91. You can use addition (+), subtraction (-), multiplication (*), and division (/). Each number can be used only once. Show your work in <think> </think> tags, write down the final equation in <answer> </answer> tags, and also provide the result, like <answer> (17 - 2) * 20 / 19 = 91 </answer>.<|im_end|>
<|im_start|>assistant
Let me solve this step by step.
<think>