Solve the System of Equations by Using Substitution $$\left\{ \begin{array} { c } x + 7 y = 7 \\3 x - 8 y = - 8\end{array} \right.$$

Multiple Choice

Solve the system of equations by using substitution.
- $$\left\{ \begin{array} { c } x + 7 y = 7 \\3 x - 8 y = - 8\end{array} \right.$$

A) x = 1, y = 0
B) x = 0, y = 0
C) x = 0, y = 1
D) x = 1, y = 1