若2a2m+2b2与-3/4am+3bn-3是同类项,则m+n=_.

问题描述:

若2a2m+2b2与-

3
4
am+3bn-3是同类项,则m+n=______.

∵2a2m+2b2与-

3
4
am+3bn-3是同类项,
∴2m+2=m+3;n-3=2,
解得:m=1,n=5,
∴m+n=6.
故答案为:6.