\[ y'(x)=\frac {x^4+x^3 e^{y(x)}+x y(x)+e^{y(x)} y(x)-x \log \left (e^{y(x)}+x\right )-e^{y(x)} \log \left (e^{y(x)}+x\right )+x}{x^2} \] ✓ Mathematica : cpu = 2.83836 (sec), leaf count = 33
\[\left \{\left \{y(x)\to -\log \left (\frac {e^{-c_1 x-\frac {x^3}{2}}}{x}-\frac {1}{x}\right )\right \}\right \}\] ✓ Maple : cpu = 2.349 (sec), leaf count = 32
\[ \left \{ y \left ( x \right ) ={\frac {{x}^{3}}{2}}+x{\it \_C1}+\ln \left ( -{x \left ( -1+{{\rm e}^{{\frac {{x}^{3}}{2}}}}{{\rm e}^{x{\it \_C1}}} \right ) ^{-1}} \right ) \right \} \]