Solve the System by the Substitution Method $x y-x^{2}=-20$ $x-2 y=3$

Multiple Choice

Solve the system by the substitution method.
- $x y-x^{2}=-20$
$x-2 y=3$

A) $\left\{(5,1) ,\left(-\frac{11}{2},-8\right) \right\}$
B) $\left\{(-5,-1) ,\left(\frac{11}{2}, 8\right) \right\}$
C) $\left\{(-5,-1) ,\left(8, \frac{11}{2}\right) \right\}$
D) $\left\{(5,1) ,\left(-8,-\frac{11}{2}\right) \right\}$