\[ x y'(x)-y(x) (\log (x y(x))-1)=0 \] ✓ Mathematica : cpu = 0.0306596 (sec), leaf count = 17
\[\left \{\left \{y(x)\to \frac {e^{e^{c_1} x}}{x}\right \}\right \}\]
✓ Maple : cpu = 0.071 (sec), leaf count = 14
\[ \left \{ y \left ( x \right ) ={\frac {1}{x}{{\rm e}^{{\frac {x}{{\it \_C1}}}}}} \right \} \]