Solve the System by the Addition Method $$\left\{ \begin{array} { l } x + y = 8 \\x + y = 4\end{array} \right.$$

question 6

Multiple Choice

Solve the system by the addition method. If there is no solution or an infinite number of solutions, so state. Use set
notation to express the solution set.
- $$\left\{ \begin{array} { l } x + y = 8 \\x + y = 4\end{array} \right.$$

• A) \(\{ ( 8,4 ) \}\)
• B) no solution; \(\varnothing\)
• C) \(\{ ( 0,0 ) \}\)
• D) \(\{ ( 0,12 ) \}\)

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