Solve the System by the Addition Method $$\begin{array} { l } 4 x + 6 y = - 42 \\2 x - 4 y = 0\end{array}$$

question 121

Multiple Choice

Solve the system by the addition method.
- $$\begin{array} { l } 4 x + 6 y = - 42 \\2 x - 4 y = 0\end{array}$$
$2 x - 4 y = 0$

• A) \(\{ ( - 6 , - 2 ) \}\)
• B) \(\{ ( - 7 , - 2 ) \}\)
• C) \(\{ ( - 6 , - 3 ) \}\)
• D) \(\varnothing\)

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