# Form (a) the coefficient matrix and (b) the augmented matrix for the system of linear equations. begin{cases}8x+3y=25 3x-9y=12 end{cases}

Form (a) the coefficient matrix and (b) the augmented matrix for the system of linear equations. $\left\{\begin{array}{l}8x+3y=25\\ 3x-9y=12\end{array}$
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For a system of equations $\left\{\begin{array}{l}ax+by=j\\ cx+dy=k\end{array}$ ,the coefficient matrix is $\left[\begin{array}{cc}a& b\\ c& d\end{array}\right]$ and the augmented matrix is $\left[\begin{array}{ccc}a& b& j\\ c& d& k\end{array}\right]$
a) For the system so the coefficient matrix is $\left[\begin{array}{cc}8& 3\\ 3& -9\end{array}\right]$
b) For the system so the augmented matrix is $\left[\begin{array}{ccc}8& 3& 25\\ 3& -9& 12\end{array}\right]$