Question

реши уравнение 60*(y/40+4)=720

Answer 1

3y/2+240=720

3y/2=480

3y=960

y=320

Answer 2

60*(у:40+4)=720

(у:40+4)=720:60

(у:40+4)=12

у:40=12-4

у:40=8

у=8*40

у=320

60*(320:40+4)=720