2x+5y与4x-4y的一半的差为( ) A.4x-y B.y-x C.7y D.x-7y
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/28 10:43:28
![2x+5y与4x-4y的一半的差为( ) A.4x-y B.y-x C.7y D.x-7y](/uploads/image/z/2541712-40-2.jpg?t=2x%2B5y%E4%B8%8E4x-4y%E7%9A%84%E4%B8%80%E5%8D%8A%E7%9A%84%E5%B7%AE%E4%B8%BA%EF%BC%88+%EF%BC%89+A.4x-y+B.y-x+C.7y+D.x-7y)
2x+5y与4x-4y的一半的差为( ) A.4x-y B.y-x C.7y D.x-7y
2x+5y与4x-4y的一半的差为( ) A.4x-y B.y-x C.7y D.x-7y
2x+5y与4x-4y的一半的差为( ) A.4x-y B.y-x C.7y D.x-7y
2x+5y-(1/2)(4x-4y)=7y
C
C
2X+5Y-1/2(4X-4Y)
2X+5Y-2X+2Y
5Y+2Y
7Y