$$xdy-2xydx=(x-2)e^{x}dx$$
$\left\{\begin{matrix}\\d=0\text{, }&\text{unconditionally}\\d\in \mathrm{C}\text{, }&\left(y=\frac{\left(x-2\right)e^{x}}{1-2x}\text{ and }x\neq \frac{1}{2}\right)\text{ or }x=0\end{matrix}\right.$
$\left\{\begin{matrix}\\d=0\text{, }&\text{unconditionally}\\d\in \mathrm{R}\text{, }&\left(y=\frac{\left(x-2\right)e^{x}}{1-2x}\text{ and }x\neq \frac{1}{2}\right)\text{ or }x=0\end{matrix}\right.$