Suppose $x$ and $y$ are integers such that  $xy+5x+4y=-5$.  Find the greatest possible value of $y$.
Question:
Suppose $x$ and $y$ are integers such that  $xy+5x+4y=-5$.  Find the greatest possible value of $y$.
Answer:
Let's think step by step.

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Suppose $x$ and $y$ are integers such that  $xy+5x+4y=-5$.  Find the greatest possible value of $y$.
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