若2x^m-n+1y^3m-2n-5与-3x^n-1y是同类项,则m=_,n=__RT

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若2x^m-n+1y^3m-2n-5与-3x^n-1y是同类项,则m=___,n=____RT若2x^m-n+1y^3m-2n-5与-3x^n-1y是同类项,则m=___,n=____RT若2x^m-

若2x^m-n+1y^3m-2n-5与-3x^n-1y是同类项,则m=___,n=____RT
若2x^m-n+1y^3m-2n-5与-3x^n-1y是同类项,则m=___,n=____
RT

若2x^m-n+1y^3m-2n-5与-3x^n-1y是同类项,则m=___,n=____RT
由已知得m-n+1=n-1,3m-2n-5=1
两式联立解得：m=4,n=3