Bestimmen Sie die Matrix $X$.

$$\left[\begin{array}{cc} 3 &-8\cr -5 &-5 \end{array}\right] - 4 X = \left[\begin{array}{cc} 6 &-2\cr -7 &5 \end{array}\right].$$
$X=$ $\left[\Rule{0pt}{2.4em}{0pt}\right.$$\left]\Rule{0pt}{2.4em}{0pt}\right.$