Find All Real Solutions to the System of Equations Using $\begin{array} { l } y = x ^ { 2 } - 10 x + 25 \\x + y = 7\end{array}$

Multiple Choice

Find all real solutions to the system of equations using the substitution method.
- $\begin{array} { l } y = x ^ { 2 } - 10 x + 25 \\x + y = 7\end{array}$

A) (3, 4) , (6, 1)
B) (3, 10) , (6, 1)
C) (5, 2)
D) (-3, 10) , (-6, 13)