Question

Solve the set of linear equations by Guassian elimination method : a+2b+3c=5, 3a-b+2c=8, 4a-6b-4c=-2. Find c

Answer 1

Is this algebra 2?

Answer 2

\[

\begin{bmatrix}
1&2&5\\
3&-1&2\\
4&-6&-4
\end{bmatrix}

\begin{bmatrix}
a\\b\\c
\end{bmatrix}

=

\begin{bmatrix}
5 \\ 8 \\-2
\end{bmatrix}
\]