Use the Substitution Method to Solve the System $$\begin{array} { l } 9 x + y = 7 \\- 9 x + 5 y = - 1\end{array}$$

Multiple Choice

Use the substitution method to solve the system.
- $$\begin{array} { l } 9 x + y = 7 \\- 9 x + 5 y = - 1\end{array}$$

A) $\left( \frac { 5 } { 3 } , - 8 \right)$
B) $( 1 , - 5 )$
C) $\left[ \frac { 2 } { 3 } , 1 \right]$
D) $\left( 5 , \frac { 4 } { 5 } \right)$