When $3y^3-13y^2+11y+23$ is divided by $3y+2$, the quotient is $y^2-5y+c$ and the remainder is constant. Find the remainder.
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
When $3y^3-13y^2+11y+23$ is divided by $3y+2$, the quotient is $y^2-5y+c$ and the remainder is constant. Find the remainder.
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
9
When $3y^3-13y^2+11y+23$ is divided by $3y+2$, the quotient is $y^2-5y+c$ and the remainder is constant. Find the remainder.
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