Decide Whether or Not the Ordered Pair Satisfies the System $\left\{ \begin{array} { l } x + y = - 4 \\x - y = - 2\end{array} \right.$

Decide whether or not the ordered pair satisfies the system of linear equations.
-(3, -1); $\left\{ \begin{array} { l } x + y = - 4 \\x - y = - 2\end{array} \right.$