Problem:
Add the two matrices
$\left(
\begin{array}{cc}
 0 & -2 \\
 4 & -4 \\
 8 & 8 \\
\end{array}
\right)$ and
$\left(
\begin{array}{cc}
 8 & -5 \\
 8 & -2 \\
 -1 & 8 \\
\end{array}
\right)$
Answer:
$\left(
\begin{array}{cc}
 8 & -7 \\
 12 & -6 \\
 7 & 16 \\
\end{array}
\right)$
{'source': 'AMPS', 'file': 'amps/mathematica/linear_algebra/add/8156.txt'}