下列变形正确的是( )A.-x+yx-y=-x-yx+yB.-x+y-x-y=...
下列变形正确的是()A.-x+yx-y=-x-yx+yB.-x+y-x-y=-x-yx+yC.-x+y-x-y=x+yx-yD.-x+y-x-y=x-yx+y...
下列变形正确的是( )A.-x+yx-y=-x-yx+yB.-x+y-x-y=-x-yx+yC.-x+y-x-y=x+yx-yD.-x+y-x-y=x-yx+y
展开
1个回答
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询