Question

решите уравнение (х-12)/(х-4) =3/5

Answer 1

(х-12)/(х-4)=3/5

5*(х-12)=3*(х-4)

5х-60=3х-12

5х-3х=60-12

2х=48

х=48:2

х=24

 

Проверка:

(24-12)/(24-4)=3/5

12/20=3/50

3/5=3/5