\[ x^2 y'(x)+y(x)-x=0 \] ✓ Mathematica : cpu = 0.0173052 (sec), leaf count = 27
\[\left \{\left \{y(x)\to -e^{\frac {1}{x}} \text {Ei}\left (-\frac {1}{x}\right )+c_1 e^{\frac {1}{x}}\right \}\right \}\] ✓ Maple : cpu = 0.018 (sec), leaf count = 16
\[y \relax (x ) = \left (\Ei \left (1, \frac {1}{x}\right )+c_{1}\right ) {\mathrm e}^{\frac {1}{x}}\]