Simplify $\frac{k-3}{2} + 3k+1+\frac{3k+1}{2}$.
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Simplify $\frac{k-3}{2} + 3k+1+\frac{3k+1}{2}$.
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
5k
Simplify $\frac{k-3}{2} + 3k+1+\frac{3k+1}{2}$.
train