\[ \left \{t x'(t)+2 (x(t)-y(t))=t,x(t)+t y'(t)+5 y(t)=t^2\right \} \] ✓ Mathematica : cpu = 0.0910719 (sec), leaf count = 58
\[\left \{\left \{x(t)\to \frac {c_1}{t^4}+\frac {c_2}{t^3}+\frac {1}{30} t (2 t+9),y(t)\to -\frac {30 c_2 t+60 c_1-8 t^6+3 t^5}{60 t^4}\right \}\right \}\]
✓ Maple : cpu = 0.056 (sec), leaf count = 54
\[ \left \{ \left \{ x \left ( t \right ) ={\frac {2\,{t}^{6}+9\,{t}^{5}+30\,{\it \_C2}\,t+30\,{\it \_C1}}{30\,{t}^{4}}},y \left ( t \right ) ={\frac {8\,{t}^{6}-3\,{t}^{5}-30\,{\it \_C2}\,t-60\,{\it \_C1}}{60\,{t}^{4}}} \right \} \right \} \]