Solve the System by Elimination $$\begin{array} { l } 6 x + 4 y = 30 \\4 x + 2 y = 20\end{array}$$

Multiple Choice

Solve the system by elimination.
- $$\begin{array} { l } 6 x + 4 y = 30 \\4 x + 2 y = 20\end{array}$$

A) $\{ ( 5,0 ) \}$

B) $\varnothing$

C) $\{ ( 4,1 ) \}$

D) $\{ ( 5,1 ) \}$