Solving the system of differential equations I need to solve the system of equations 
$$tx'=\begin{pmatrix}
        2 & -1 \\
        3 & -2 \\
        \end{pmatrix}x$$
where $t>0$. I can solve this system if there was not any $t$ there. How do I treat that $t$?
Any help would be appreciated!
Thanks in advance!

Change variable $\tau=\log(t)$
Then 
$$
t dx/dt= dx/d(\log(t))=dx/d\tau
$$
Solve the system with respect to $\tau$ and replace finally $\tau$ by $\log(t)$.
