|3x-6|+6(y+3)²=0
3x-6=0
x=2
y+3=0
y=-3
x+y=2-3=-1
(x+y)^2013-(1/3)^2013×y^2012
=(x+y)^2013-1/3×(1/3)^2012×y^2012
=-1-1/3×(1/3y)^2012
=-1-1/3
=-4/3
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