Chapter 6.5, Problem 2CVC

To determine

To fill: The blank space in the following statement,

Using Cramer's Rule to solve

$\{\begin{array}{r}\hfill x+y=8\\ \hfill x-y=-2\end{array}$

we obtain

$x=\frac{\left|\begin{array}{rr}\hfill -& \hfill -\\ \hfill -& \hfill -\end{array}\right|}{\left|\begin{array}{rr}\hfill -& \hfill -\\ \hfill -& \hfill -\end{array}\right|}$ and $y=\frac{\left|\begin{array}{rr}\hfill -& \hfill -\\ \hfill -& \hfill -\end{array}\right|}{\left|\begin{array}{rr}\hfill -& \hfill -\\ \hfill -& \hfill -\end{array}\right|}$