Question

Я умоляю решите пж (720-n*6):9=60

Answer 1

(720-n*6):9=60
720-n*6=60*9
720-n*6=540
n*6=720-540
n*6=180
n=180:6
n=30

(720-30*6):9=60
60=60

Answer 2

(720-n*6):9=60
720-n*6=60*9
720-n*6=540
n*6=720-540
n*6=180
n=180:6
n=30