Solve the Equation for X $\left| \begin{array} { r r } - 2 & 5 \\1 & x\end{array} \right| = - 9$

Multiple Choice

Solve the equation for x.
$\left| \begin{array} { r r } - 2 & 5 \\1 & x\end{array} \right| = - 9$

A) {-9}
B) {2}
C) {7}
D) $\varnothing$