Problem:
Convert the following matrix to reduced row echelon form:
$\left(
\begin{array}{cccc}
 -8 & -7 & -5 & -2 \\
 10 & 3 & -10 & -7 \\
\end{array}
\right)$.
Answer:
$\left(
\begin{array}{cccc}
 1 & 0 & -\frac{85}{46} & -\frac{55}{46} \\
 0 & 1 & \frac{65}{23} & \frac{38}{23} \\
\end{array}
\right)$
{'source': 'AMPS', 'file': 'amps/mathematica/linear_algebra/row_reduce/26100.txt'}