Question 6672
when you multiply the second equation by 2, we get-
6x - 4y = 3....[1]
3x - 2y = 9 ...[2]
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6x - 4y = 3
6x - 4y = 18 
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Clearly,this is not possible,as both x and y are getting eliminated.Please check your question,and post back again.

Prabhat.