\[ \left \{t x'(t)+2 x(t)=t,-(t+2) x(t)+t y'(t)-t y(t)=-t\right \} \] ✓ Mathematica : cpu = 0.0085369 (sec), leaf count = 39
\[\left \{\left \{x(t)\to \frac {t}{3}+\frac {c_1}{t^2},y(t)\to -\frac {c_1}{t^2}-\frac {t}{3}+c_2 e^t\right \}\right \}\] ✓ Maple : cpu = 0.152 (sec), leaf count = 39
\[ \left \{ \left \{ x \left ( t \right ) ={\frac {t}{3}}+{\frac {{\it \_C2}}{{t}^{2}}},y \left ( t \right ) ={\frac {3\,{\it \_C1}\,{{\rm e}^{t}}{t}^{2}-{t}^{3}-3\,{\it \_C2}}{3\,{t}^{2}}} \right \} \right \} \]