Use the Addition Method to Solve the System $$\left\{ \begin{array} { c } a + b = 3 \\a - b = - 1\end{array} \right.$$

question 2

Multiple Choice

Use the addition method to solve the system. $$\left\{ \begin{array} { c } a + b = 3 \\a - b = - 1\end{array} \right.$$

• A) \(( 1 , - 2 )\)
• B) \(( 2,1 )\)
• C) \(( 1,2 )\)
• D) \(( - 1,2 )\)
• E) \(( - 2 , - 1 )\)

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