5X=4X+2 等于几?
问题描述:
5X=4X+2 等于几?
答
5X=4X+2
5X-4X=2
(5-4)X=2
X=2
5X=4X+2 等于几?
5X=4X+2
5X-4X=2
(5-4)X=2
X=2