[tex].\ \begin{array}{ccc}\ x&\ \ y&\ \ z\end{array} \\\left[\begin{array}{ccc}5&-4&4\\6&5&-2\\-5&2&3\end{array}\right| \left\begin{array}{ccc}5\\3\\4\end{array}\right]\\\\\\B.\ \left\{\begin{array}{ccc}5x-4y+4z=5\\6x+5y-2z=3\\-5x+2y+3=4\end{array}\right[/tex]
