:1.若-5x^2y^3+ax^2y^3=6x^2y^3,则a=?2.已知x:1.若-5x^2y^3+ax^2y^3=6x^2y^3,则a=?2.已知x-3y=3,则5-x+3y的值是?
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:1.若-5x^2y^3+ax^2y^3=6x^2y^3,则a=?2.已知x:1.若-5x^2y^3+ax^2y^3=6x^2y^3,则a=?2.已知x-3y=3,则5-x+3y的值是?:1.若-5x
:1.若-5x^2y^3+ax^2y^3=6x^2y^3,则a=?2.已知x:1.若-5x^2y^3+ax^2y^3=6x^2y^3,则a=?2.已知x-3y=3,则5-x+3y的值是?
:1.若-5x^2y^3+ax^2y^3=6x^2y^3,则a=?2.已知x
:1.若-5x^2y^3+ax^2y^3=6x^2y^3,则a=?
2.已知x-3y=3,则5-x+3y的值是?
:1.若-5x^2y^3+ax^2y^3=6x^2y^3,则a=?2.已知x:1.若-5x^2y^3+ax^2y^3=6x^2y^3,则a=?2.已知x-3y=3,则5-x+3y的值是?
1、-5x^2y^3+ax^2y^3=(-5+a)x^2y^3
=6x^2y^3,所以-5+a=6,a=11
2、5-x+3y=5-(x-3y)=5-3=2
5x-3y=-4ax+5y=a+2x+y=0
:1.若-5x^2y^3+ax^2y^3=6x^2y^3,则a=?2.已知x:1.若-5x^2y^3+ax^2y^3=6x^2y^3,则a=?2.已知x-3y=3,则5-x+3y的值是?
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