Solve the System of Equations by the Elimination Method $\frac { 3 } { 2 } x - \frac { 1 } { 3 } y = - 21$

Multiple Choice

Solve the system of equations by the elimination method.
- $\frac { 3 } { 2 } x - \frac { 1 } { 3 } y = - 21$
$\frac { 3 } { 4 } x + \frac { 2 } { 9 } y = - 7$

A) $( - 12,9 )$
B) $( 12,9 )$
C) $( - 12 , - 9 )$
D) $( 9 , - 12 )$