·若x.y互为相反数,且（x+y+3)(x-y-2)=6,则x等于几

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·若x.y互为相反数,且（x+y+3)(x-y-2)=6,则x等于几·若x.y互为相反数,且（x+y+3)(x-y-2)=6,则x等于几·若x.y互为相反数,且（x+y+3)(x-y-2)=6,则x等

·若x.y互为相反数,且（x+y+3)(x-y-2)=6,则x等于几
·若x.y互为相反数,且（x+y+3)(x-y-2)=6,则x等于几

·若x.y互为相反数,且（x+y+3)(x-y-2)=6,则x等于几
x.y互为相反数,则x+y=0
（x+y+3)(x-y-2)=6
(0+3)(2x-(x+y)-2)=6
3(2x-2)=6
x-1=1
x=2
x=2时,原式成立

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