\[ y'(x)=\frac {e^{\frac {y(x)}{x}} \left (x^2 e^{-\frac {y(x)}{x}}+x e^{-\frac {y(x)}{x}}+x e^{-\frac {y(x)}{x}} y(x)+e^{-\frac {y(x)}{x}} y(x)+x\right )}{x (x+1)} \] ✓ Mathematica : cpu = 1.52686 (sec), leaf count = 22
\[\left \{\left \{y(x)\to -x \log \left (\frac {c_1-\log (x+1)}{x}\right )\right \}\right \}\]
✓ Maple : cpu = 0.441 (sec), leaf count = 20
\[ \left \{ y \left ( x \right ) =-\ln \left ( {\frac {-\ln \left ( 1+x \right ) +{\it \_C1}}{x}} \right ) x \right \} \]