Question

Реши уравнения
480:(13-t)+20=100

Answer 1

480:(13-t)=100-20=80
13-t=480:80=6
t=13-6
t=7

Answer 2

480:(13-t)=100-20
480:(13-t)=80
480:(13-t)=480:80
480:(13-t)=6
t=13-6
t=7