Answer
$$\frac{-x-1}{x+5}$$
Work Step by Step
Ensuring that we have like denominators and then attempting to simplify, we find:
$$\frac{3x}{x+5}-\frac{4x+1}{x+5}\\ \frac{3x-\left(4x+1\right)}{x+5}\\ \frac{-x-1}{x+5}$$
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