来自李庆中的问题
(5x-3y)-(2x+y)+(3y-2x)去括号合并同类项
(5x-3y)-(2x+y)+(3y-2x)去括号合并同类项
1回答
2020-06-10 00:26
(5x-3y)-(2x+y)+(3y-2x)去括号合并同类项
(5x-3y)-(2x+y)+(3y-2x)去括号合并同类项
(5x-3y)-(2x+y)+(3y-2x)
=5x-3y-2x-y+3y-2y
=3x-2y