(5y+245)*16=3920+32080

16*5y+245*16=3920+32080

80y+245*16=3920+32080

80y+3920=3920+32080

80y=3920-3920+32080

80y=32080

y=32080/80

y=16040/40

y=8020/20

y=4010/10

y=401