#### Answer

In order to write a matrix that would solve this linear equation, we write the coefficients of each variable in their own column. Doing this, we find:
$$\begin{bmatrix}
3&-5&2&\vdots&12 \\12&0&-7&\vdots &10
\end{bmatrix}$$

Published by
Cengage Learning

ISBN 10:
9781337271172

ISBN 13:
978-1-33727-117-2

You can help us out by revising, improving and updating this answer.

Update this answerAfter you claim an answer you’ll have **24 hours** to send in a draft. An editor
will review the submission and either publish your submission or provide feedback.