Løs for x (complex solution)
\left\{\begin{matrix}x=\frac{\sqrt{y^{2}+7y+1}+4y+1}{y}\text{; }x=\frac{-\sqrt{y^{2}+7y+1}+4y+1}{y}\text{, }&y\neq 0\\x=\frac{1}{2}=0,5\text{, }&y=0\end{matrix}\right,
Løs for y (complex solution)
y=-\frac{1-2x}{\left(x-5\right)\left(x-3\right)}
x\neq 3\text{ and }x\neq 5
Løs for x
\left\{\begin{matrix}x=\frac{\sqrt{y^{2}+7y+1}+4y+1}{y}\text{; }x=\frac{-\sqrt{y^{2}+7y+1}+4y+1}{y}\text{, }&y\leq \frac{-3\sqrt{5}-7}{2}\text{ or }\left(y\neq 0\text{ and }y\geq \frac{3\sqrt{5}-7}{2}\right)\\x=\frac{1}{2}=0,5\text{, }&y=0\end{matrix}\right,
Løs for y
y=-\frac{1-2x}{\left(x-5\right)\left(x-3\right)}
x\neq 5\text{ and }x\neq 3
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