合聚咖

合聚咖

2.12=(76-x)/x,求X是多少

admin

2.12=(76-x)/x

2.12x=76-x

2.12x+x=76

3.12x=76

x=76/3.12

x=7600/312

x=950/39

x=39分之950

x=24又39分之14