Solve Linear Systems by Substitution
- $$\begin{aligned}- 5 x + 2 y & = 72 \\x - 4 y & = 0\end{aligned}$$

Multiple Choice

Solve Linear Systems by Substitution
- $$\begin{aligned}- 5 x + 2 y & = 72 \\x - 4 y & = 0\end{aligned}$$
$$x - 4 y = 0$$

A) $\{ ( - 16 , - 4 ) \}$
B) $\{ ( - 4 , - 16 ) \}$
C) $\{ ( - 16,4 ) \}$
D) $\{ ( - 15 , - 4 ) \}$