作业帮(2x-3y)-(5x-y)
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/16 23:51:22
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(2x-3y)-(5x-y)
(2x-3y)-(5x-y)
(2x-3y)-(5x-y)
（2x-3y）-（5x-y）
=2x-3y-5x+y ……………………去括号
=（2-5）x+（-3+1）y ……………………合并同类项
=-3x-2y
望采纳,O(∩_∩)O谢谢
楼主你好！很高兴为你
首先要去括号，然后合并同类项~
(2x-3y)-(5x-y)
=2x-3y-5x+y
=(2x-5x)+(y-3y)
=-3x-2y
这样解说希望楼主能理解，不清楚的话欢迎追问交流，希望能帮到楼主~
2x-3y-5x+y 记住去括号，括号外面是“－”的，里面都要变号，合并同类项。
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