Solve the System of Equations Below by the Method of Substitution

Multiple Choice

Solve the system of equations below by the method of substitution. $\left\{ \begin{array} { l } \frac { 3 } { 5 } x - \frac { 3 } { 2 } y = - \frac { 21 } { 10 } \\\\\frac { 5 } { 2 } x + \frac { 2 } { 7 } y = \frac { 335 } { 14 }\end{array} \right.$

A) (9,5)
B) (7,3)
C) (5,5)
D) (3,7)
E) (1,1)