Answer
$\begin{bmatrix}
2 & -3 & 4
\\
5 & 6 & -7
\end{bmatrix}$
Work Step by Step
Adding/subtracting the corresponding elements in the given matrix expression, $ \begin{bmatrix}
2 & -3 & 4
\\
5 & 6 & -7
\end{bmatrix}
+
\begin{bmatrix}
0 & 0 & 0
\\
0 & 0 & 0
\end{bmatrix}
,$ results to
\begin{align*}
&
\begin{bmatrix}
2+0 & -3+0 & 4+0
\\
5+0 & 6+0 & -7+0
\end{bmatrix}
\\\\&=
\begin{bmatrix}
2 & -3 & 4
\\
5 & 6 & -7
\end{bmatrix}
.\end{align*}
Hence, the given expression simplifies to $
\begin{bmatrix}
2 & -3 & 4
\\
5 & 6 & -7
\end{bmatrix}
$.
