Represent the Given System of Linear Equations as a Matrix $\begin{aligned} 6 x-3 y & =-7 \\ 6 x-3 y & =21\end{aligned}$

Short Answer

Represent the given system of linear equations as a matrix. Use alphabetical order for the variables.
$\begin{aligned} 6 x-3 y & =-7 \\ 6 x-3 y & =21\end{aligned}$