Answer
$(200,700)$ is a solution of the system.
Work Step by Step
An ordered pair is a solution to the system if it satisfies both equatons:
$ \begin{array}{lllll}
-4(200)+(700) & =-100 & .... & 0.05(200)-0.06(700) & =-32\\
-800+700 & =-100 & & 10-42 & =-32\\
-100 & =-100 & & -32 & =-32\\
TRUE & & & TRUE &
\end{array} $
$(200,700)$ is a solution of the system.