<|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 [87, 93, 16, 45], create an equation that equals 240. Utilize basic arithmetic operations (+, -, *, /) and each number only once. Show your reasoning in <think> </think> tags. Provide your final equation in <answer> </answer> format, as in <answer> (number1 * number2) - number3 = target </answer>.<|im_end|>
<|im_start|>assistant
Let me solve this step by step.
<think>