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

Question 91

Multiple Choice

Solve the system of equations by the addition method.
- $\left\{ \begin{array} { l } x + y = 4 \\x - y = 4\end{array} \right.$

A) $( 0 , - 4 )$
B) $( 4,0 )$
C) $( 0,4 )$
D) $( - 4,0 )$

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