Solve the System by Substitution $x+y=-8$ $8 x-y=-64$ A) $\{(-8,0)\}$ B) $\{(-8,8)\}$ C) $\{(0,-8)\}$

Multiple Choice

Solve the system by substitution. If the system is inconsistent or has dependent equations, say so.
- $x+y=-8$
$8 x-y=-64$

A) $\{(-8,0) \}$
B) $\{(-8,8) \}$
C) $\{(0,-8) \}$
D) $\{(0,8) \}$