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(2007•深圳)若单项式2x2ym与xny3是同类项,则m+n的值是 .
(2007•深圳)若单项式2x
2y
m与
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131019110348993586451/SYS201310191103489935864012_ST/0.png)
x
ny
3是同类项,则m+n的值是
.
考点分析:
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