Solve the System of Equations $$\left\{ \begin{aligned}y & = - 3 x \\- 3 x + y & = - 6\end{aligned} \right.$$

Multiple Choice

Solve the system of equations.
- $$\left\{ \begin{aligned}y & = - 3 x \\- 3 x + y & = - 6\end{aligned} \right.$$

A) $( - 1,3 )$
B) $( 1,6 )$
C) $( 1 , - 3 )$
D) $\varnothing$