(5x-3y)-(2x+y)+(3y-2x)去括号合并同类项
问题描述:
(5x-3y)-(2x+y)+(3y-2x)去括号合并同类项
答
(5x-3y)-(2x+y)+(3y-2x)
=5x-3y-2x-y+3y-2y
=3x-2y