Solve the System of Equations by the Substitution Method $$\left\{ \begin{array} { r } x - 5 y = - 10 \\2 x - 6 y = - 8\end{array} \right.$$

Multiple Choice

Solve the system of equations by the substitution method.
- $$\left\{ \begin{array} { r } x - 5 y = - 10 \\2 x - 6 y = - 8\end{array} \right.$$

A) $( 4,4 )$
B) $( 5,3 )$
C) $( - 5,4 )$
D) $\varnothing$