Find All Real Solutions to the System of Equations Using $\begin{array} { r } x y = 12 \\x + y = 7\end{array}$

Multiple Choice

Find all real solutions to the system of equations using the substitution method.
- $\begin{array} { r } x y = 12 \\x + y = 7\end{array}$

A) (4, -3) , (3, -4)
B) (4, 3) , (3, 4)
C) (-4, 3) , (-3, 4)
D) (-4, -3) , (-3, -4)