5x+x-2.5x=56解方程,
问题描述:
5x+x-2.5x=56解方程,
答
(5+1-2.5)X= 56
3.5X = 56
X=56÷3.5
X= 16
5x+x-2.5x=56解方程,
(5+1-2.5)X= 56
3.5X = 56
X=56÷3.5
X= 16