Use Cramer S Rule to Solve for X in the Following

Multiple Choice

Use Cramer s Rule to solve for x in the following system. $\left\{ \begin{array} { l } 2 x - 6 y = - 8 \\2 x + 2 y = 7\end{array} \right.$

A) $x = \frac { \left| \begin{array} { c c } 2 & - 8 \\2 & 7\end{array} \right| } { \left| \begin{array} { c c } 2 & - 6 \\2 & 2\end{array} \right| }$
B) $x = \frac { \left| \begin{array} { c c } 2 & - 6 \\2 & 2\end{array} \right| } { \left| \begin{array} { c c } - 8 & - 6 \\7 & 2\end{array} \right| }$
C) $x = \frac { \left| \begin{array} { c c } - 8 & - 6 \\7 & 2\end{array} \right| } { \left| \begin{array} { c c } 2 & - 6 \\2 & 2\end{array} \right| }$
D) none of these