Solve the System by the Substitution Method $x^{2}+y^{2}=61$ $\mathrm{x}-\mathrm{y}=1$ A) $(5,-6),(6,-5)$ B) $(-5,-6),(6,5)$

Multiple Choice

Solve the system by the substitution method.
- $x^{2}+y^{2}=61$ $\mathrm{x}-\mathrm{y}=1$

A) $(5,-6) ,(6,-5)$
B) $(-5,-6) ,(6,5)$
C) $(-5,6) ,(-6,5)$
D) $(5,6) ,(6,5)$