2x-3=y xy=209
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2x-3=yxy=2092x-3=yxy=2092x-3=yxy=209有题可知,2x-3=yxy=209代入消去y,得x(2x-3)=209所以,2x²-3x-209=0,即(x-11)(
2x-3=y xy=209
2x-3=y xy=209
2x-3=y xy=209
有题可知,2x-3=y xy=209
代入消去y,得x(2x-3)=209
所以,2x²-3x-209=0,即(x-11)(2x+19)=0
所以,x=11,y=19或x=-19/2,y=-22
X=11,Y=19
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