Answer
$$
\left[ \begin{array}{ccc} 2&-1&-1\\ 1&3&2\\-6&3&3\end{array} \right]=0.
$$
Work Step by Step
Given
$$
\left[ \begin{array}{ccc} 2&-1&-1\\ 1&3&2\\-6&3&3\end{array} \right].
$$
Since the third row is the multiple of the first row by $-3$, then we have
$$
\left[ \begin{array}{ccc} 2&-1&-1\\ 1&3&2\\-6&3&3\end{array} \right]=0.
$$
