Solve the System of Equations by the Substitution Method $$\begin{aligned}y & = 5 x - 4 \\2 y + 6 x & = - 24\end{aligned}$$

Multiple Choice

Solve the system of equations by the substitution method.
- $$\begin{aligned}y & = 5 x - 4 \\2 y + 6 x & = - 24\end{aligned}$$

A) $\{ ( - 9 , - 1 ) \}$
B) $\{ ( 1 , - 9 ) \}$
C) $\{ ( - 1 , - 9 ) \}$
D) $\varnothing$