Решите уравнение - (4/5 - x) + 13/20 = 25/30

Question

Решите уравнение - (4/5 - x) + 13/20 = 25/30

Answer 1

4/5-x=25/30-13/20=(25*20-13*30)/600=110/600=11/60
4/5-11/60=x
x=(4*12-11)/60=37/60

Comments

спс