若2x+3y=1004,则多项式2(3x-2y)-(x-y)+(-x+9y)=?Thank you!
问题描述:
若2x+3y=1004,则多项式2(3x-2y)-(x-y)+(-x+9y)=?
Thank you!
答
若2x+3y=1004,则多项式2(3x-2y)-(x-y)+(-x+9y)=?
Thank you!