(10x+y)-(10y+x)怎么化简
问题描述:
(10x+y)-(10y+x)怎么化简
答
(10x+y)-(10y+x)
=10x+y-10y-x
=9x-9y
(10x+y)-(10y+x)怎么化简
(10x+y)-(10y+x)
=10x+y-10y-x
=9x-9y