<|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 [6, 7, 21, 24], create an equation that equals 121. You can use basic arithmetic operations (+, -, *, /) with each number used only once. Show your work in <think> </think> tags. Your final equation and results must be in <answer> </answer> tags, for example: <answer> (21 * 7) + 6 + 24 = 121 </answer>. Show your work and your final answer for every step.<|im_end|>
<|im_start|>assistant
Let me solve this step by step.
<think>