Solve the System by the Substitution or Elimination Method $$\left( \begin{array} { r l } 9 x ^ { 2 } + 4 y ^ { 2 } & = 25 \\3 x + 2 y & = 7\end{array} \right)$$

Multiple Choice

Solve the system by the substitution or elimination method. $$\left( \begin{array} { r l } 9 x ^ { 2 } + 4 y ^ { 2 } & = 25 \\3 x + 2 y & = 7\end{array} \right)$$

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