数学x²+y²-10x+12y+61=0,求x+y
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数学x²+y²-10x+12y+61=0,求x+y
数学x²+y²-10x+12y+61=0,求x+y
数学x²+y²-10x+12y+61=0,求x+y
x²+y²-10x+12y+61=0
(x-5)²+(y+6)²=0
x-5=0,y+6=0
x=5,y=-6
所以
x+y=5-6=-1