<|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 [10, 30, 45, 60], create an equation that equals 145. You can use basic arithmetic operations (+, -, *, /) and each number can only be used once. Show your work in <think> </think> tags. And return the final equation and answer in <answer> </answer> tags, for example <answer> (10 + 30) * (45 / 60) = 145 </answer>. This is a more complex puzzle, with variables in your number selection and your target being an auxiliary value. The output should clearly match the requested format, with a demonstration of all steps used in reaching the answer.<|im_end|>
<|im_start|>assistant
Let me solve this step by step.
<think>