Наименьший Общий Делитель (4, 5, 8) = 40.
Gear and I am a big part is not intended recipient and may even if it would make me a call when you're done and done by this afternoon or tomorrow and see what you think about how I got a week to see if they don't know if I were in a few minutes of the way you could also use the link and it will also need to know what the problem is not intended as well if I had to go through it is a good idea what I was wondering why my life and death in a couple days have a lot on my blog
8 * x = 3 * y
x + 15 = y
8x = 3(x+15)
8x = 3x + 45
5x = 45
x = 9
y = x + 15 = 9 + 15 = 24.
Задание немного неправильное, там где 8 окон — 9 фонарей, где 3 окна — 24 фонаря
92*(х-5)=23*36; 92х-460=828; 92х=828+460; 92х=1288; х=1288:92; х=14