Sejam as matrizes $A=\left[\begin{array}{cc}1& 0\\ 3& 2\end{array}\right]$, $B=\left[\begin{array}{cc}2& -1\\ 0& 2\end{array}\right]$,$C=\left[\begin{array}{cc}1& 0\\ 0& 1\end{array}\right]$ e $X$ tais que

$$X-A\cdot B=2\cdot C$$

Então, $detX=\_\_\_\_\_\_\_$