# Form (a) the coefficient matrix and (b) the augmented matrix for the system of linear equations. \left{\begin{array}{c} 7 x-5 y=11 x-y=-5 \end{array}\

Form (a) the coefficient matrix and (b) the augmented matrix for the system of linear equations. $\left\{\begin{array}{l}7x-5y=11\\ x-y=-5\end{array}$

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broliY

coefficient matrix: $\left[\begin{array}{cc}7& -5\\ 1& -1\end{array}\right]$
sugmented matrix: $\left[\begin{array}{cccc}7& -5& |& 11\\ 1& -1& |& -5\end{array}\right]$