1.

\[x=3\]and \[y=-1\] is a solution of which of the linear equations given?

A. \[x+y=3\]                    
B. \[2x+y=3\]       
C.        \[x+2y=1\]       
D.        \[2x-y=1\]                    
Answer» D.        \[2x-y=1\]                    


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