A) \[x+y=3\]
B) \[2x+y=3\]
C) \[x+2y=1\]
D) \[2x-y=1\]
Correct Answer: C
Solution :
Substituting \[x=3\]and \[y=-1\]in \[x+2y=1\] \[\Rightarrow \]\[3+2(-1)=1\] \[\Rightarrow \]\[3-2=1\Rightarrow 1=1\,(True)\] Hence \[(3,-1)\]is the solution of \[x+2y+1.\]You need to login to perform this action.
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