48000／60X = 24000/40(210-x) 这道分式方程怎么解的,分式两边同乘什么?

分类: 作业答案 • 2022-03-21 08:50:19

问题描述：

答

48000／60X = 24000/40(210-x)
4800／6X = 2400/4(210-x)
48／6X = 24/4(210-x)
8／X = 6/(210-x)
4／X = 3/(210-x)
4(210-x) = 3X
840-4x = 3X
7x=840
x=120