Find All Real Solutions to the System of Equations Using $\begin{array} { l } x ^ { 2 } - y ^ { 2 } = 39 \\x - y = 3\end{array}$

Multiple Choice

Find all real solutions to the system of equations using the substitution method.
- $\begin{array} { l } x ^ { 2 } - y ^ { 2 } = 39 \\x - y = 3\end{array}$

A) (-8, 5)
B) (-8, -5)
C) (8, -5)
D) (8, 5)