若am-2bn+7与-3a4b4是同类项,则m-n=______.
已知代数式2a3bn+1与-3am+2b2是同类项,则2m+3n=______.
已知代数式2a3bn+1与-3am-2b2是同类项,则m+2n=______.
若单项式3x2yn与-2xmy3是同类项,则m+n=______.
2a5bn+2与-9am+nb5是同类项.求2m-3n=______.
已知代数式2a平方bn+1次方与-3am-2次方b平方是同类项,则2m+3n=多少
已知代数式2a的立方bn+1与-3am-2b到的平方是同类项,则2m+3n的值为
当m=______,n=______时,2xmy3与-3xy3n是同类项.
单项式3xm+2ny8与-2x2y3m+4n是同类项,则m+n=______.
已知单项式9am+1bn+1与-2a2m-1b2n-1的积与5a3b6是同类项,求m,n的值.
若2003xn+7与2004x2n+3是同类项,则n=______.
单项式3x^m+2 y^7与-2x^4 y^2m+3n是同类项,则m+n=______
若关于N、M的方程组AM+BN=7 2M-BN=-2与AM-BN=-1 3M=N=5有相同的解,试求A+B的值