\[ x y''(x)+y'(x)=0 \] ✓ Mathematica : cpu = 0.00569504 (sec), leaf count = 13
\[\left \{\left \{y(x)\to c_1 \log (x)+c_2\right \}\right \}\] ✓ Maple : cpu = 0.021 (sec), leaf count = 10
\[ \left \{ y \left ( x \right ) ={\it \_C2}\,\ln \left ( x \right ) +{\it \_C1} \right \} \]