"6x-28-2.5x+30.5"怎么化简?
问题描述:
"6x-28-2.5x+30.5"怎么化简?
答
6x-28-2.5x+30.5=3.5x+2.5
答
6x-28-2.5x+30.5
=(6-2.5)x+(30.5-28)
=3.5x+2.5.
答
6x-28-2.5x+30.5
=(6-2.5)x+(30.5-28)
=3.5x+2.5