<|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
Challenge yourself to create an equation that equals 64 using the numbers [1, 6, 8, 4], and aim to use only two arithmetic operations and no more than two unique numbers (i.e., combining numbers or using basic arithmetic with the given numbers). Each number can only be used once and show your work in <think> </think> tags. Finally, provide the final equation and answer in <answer> </answer> tags, for example <answer> (2 * 3) + 4 = 10 </answer>.<|im_end|>
<|im_start|>assistant
Let me solve this step by step.
<think>