已知实数x、y满足:根号3x+4+y^2-6y+9=0,且axy-3x=y,则实数a的值是:还要能讲出来.

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已知实数x、y满足:根号3x+4+y^2-6y+9=0,且axy-3x=y,则实数a的值是:还要能讲出来.已知实数x、y满足:根号3x+4+y^2-6y+9=0,且axy-3x=y,则实数a的值是:还

已知实数x、y满足:根号3x+4+y^2-6y+9=0,且axy-3x=y,则实数a的值是:还要能讲出来.
已知实数x、y满足:根号3x+4+y^2-6y+9=0,且axy-3x=y,则实数a的值是:
还要能讲出来.

已知实数x、y满足:根号3x+4+y^2-6y+9=0,且axy-3x=y,则实数a的值是:还要能讲出来.
根号(3x+4)+y^2-6y+9=0
根号(3x+4)+(y-3)^2=0
因为3x+4>=0,(y-3)^2>=0
所以:3x+4=0,y-3=0
x=-4/3,y=3
axy-3x=y
a=(3x+y)/(xy)=-1/(-4)=1/4