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:
$$\begin{bmatrix}
3&-5&2&\vdots&12 \\12&0&-7&\vdots &10
\end{bmatrix}$$
Work Step by Step
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:
$$\begin{bmatrix}
3&-5&2&\vdots&12 \\12&0&-7&\vdots &10
\end{bmatrix}$$
