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Determine Whether the Given Ordered Pair Is a Solution of the System

Question 71

Multiple Choice

Determine whether the given ordered pair is a solution of the system.
- (1,−2) x+y=−1x−y=3\begin{array} { l } ( 1 , - 2 ) \\x + y = - 1 \\x - y = 3\end{array}


A) solution
B) not a solution

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