Solve the System of Linear Equations $\left\{ \begin{array} { l } 4 x + 4 y = 3 \\8 x - 20 y = - 9\end{array} \right.$

Multiple Choice

Solve the system of linear equations $\left\{ \begin{array} { l } 4 x + 4 y = 3 \\8 x - 20 y = - 9\end{array} \right.$ using an inverse matrix.

A) $\left[ \begin{array} { l } x \\y\end{array} \right] = \left[ \begin{array} { l } \frac { 3 } { 14 } \\\frac { 15 } { 28 }\end{array} \right]$
B) $\left[ \begin{array} { l } x \\y\end{array} \right] = \left[ \begin{array} { l } \frac { 9 } { 28 } \\\frac { 12 } { 7 }\end{array} \right]$
C) $\left[ \begin{array} { l } x \\y\end{array} \right] = \left[ \begin{array} { c } \frac { 9 } { 28 } \\\frac { - 3 } { 14 }\end{array} \right]$
D) $\left[ \begin{array} { l } x \\y\end{array} \right] = \left[ \begin{array} { c } \frac { 9 } { 7 } \\\frac { 15 } { 28 }\end{array} \right]$
E) $\left[ \begin{array} { l } x \\y\end{array} \right] = \left[ \begin{array} { c } \frac { - 9 } { 7 } \\\frac { - 3 } { 14 }\end{array} \right]$