\[ x^2 y'(x)+y(x)-x=0 \] ✓ Mathematica : cpu = 0.017806 (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 = 0.015 (sec), leaf count = 16
\[\left \{y \left (x \right ) = \left (c_{1}+\Ei \left (1, \frac {1}{x}\right )\right ) {\mathrm e}^{\frac {1}{x}}\right \}\]