Solve for $X$.

$$\left[\begin{array}{cc} 9 &1\cr -5 &4 \end{array}\right] - X \left[\begin{array}{cc} -6 &1\cr -6 &5 \end{array}\right] = I.$$
$X=$ $\left[\Rule{0pt}{2.4em}{0pt}\right.$$\left]\Rule{0pt}{2.4em}{0pt}\right.$