1.(1)x=3,y=2, (2)x=1,y=-3, (3)x=2,y=7, 2.(1)x=-1,y=2, (2)x=4,y=2, (3)x=2,y=-2, 3.(1)x=2,y=2, (2)x=1,y=3/2, (3)x=-1/3,y=-2, (4)x=1,y=1, (5)x=-3,y=1/2
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