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

来源:学生作业学帮网 编辑:学帮网 时间:2024/05/20 18:12:11

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

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