Solve the System by Using the Substitution Method $$\left( \begin{array} { l } 4 x - 5 y = 7 \\8 x + 15 y = - 26\end{array} \right)$$

Multiple Choice

Solve the system by using the substitution method. $$\left( \begin{array} { l } 4 x - 5 y = 7 \\8 x + 15 y = - 26\end{array} \right)$$

A) $\left( - 1 , - \frac { 8 } { 5 } \right)$
B) $\left( - \frac { 1 } { 4 } , - \frac { 8 } { 5 } \right)$
C) $\left( - \frac { 8 } { 5 } , - \frac { 1 } { 4 } \right)$
D) infinitely many solutions
E) no solutions