若2/3x^5m+2n+2y^3与-3/4x^6y^3m-2n-1的和是单项式,则m= ,n= .

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若2/3x^5m+2n+2y^3与-3/4x^6y^3m-2n-1的和是单项式,则m= ,n= .
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若2/3x^5m+2n+2y^3与-3/4x^6y^3m-2n-1的和是单项式,则m= ,n= .
若2/3x^5m+2n+2y^3与-3/4x^6y^3m-2n-1的和是单项式,则m= ,n= .

若2/3x^5m+2n+2y^3与-3/4x^6y^3m-2n-1的和是单项式,则m= ,n= .
若2/3x^5m+2n+2y^3与-3/4x^6y^3m-2n-1的和是单项式
5m+2n+2=6
3=3m-2n-1
解得
m=1
n=-1/2