Solve the System of Equations by the Substitution Method $$\begin{array} { l } y = 3 x + 9 \\y = 8 x + 8\end{array}$$

Multiple Choice

Solve the system of equations by the substitution method.
- $$\begin{array} { l } y = 3 x + 9 \\y = 8 x + 8\end{array}$$

A) $\left\{ \left( \frac { 1 } { 5 } , \frac { 48 } { 5 } \right) \right\}$
B) $\left\{ \left( \frac { 48 } { 5 } , \frac { 1 } { 5 } \right) \right\}$
C) $\{ ( 1,12 ) \}$
D) $\varnothing$