If i buy 10 video cards GeForce GTX 1070 and start mining

[Fingo]

When i can get my money back if i buy 10 video cards GeForce GTX 1070 for 5000$

[wavelengthsf]

Mining Bitcoin? Never. You will never get an ROI with GPU mining for Bitcoin.

If its an altcoin, you're in the wrong section.

[cpmcgrat]

Mining Bitcoin? Never. You will never get an ROI with GPU mining for Bitcoin.

If its an altcoin, you're in the wrong section.

He's in the Mining (Altcoins) section

[Metroid]

If you are lucky then you will get back your money in 2 years and half if not then around 4 years and if not luck at all then you will never get your money back.

[sigtmerchant]

Mining Bitcoin? Never. You will never get an ROI with GPU mining for Bitcoin.

If its an altcoin, you're in the wrong section.

LOL mate, it seems to me you are in the wrong section yourself

[ben8jam]

Mining Bitcoin? Never. You will never get an ROI with GPU mining for Bitcoin.

If its an altcoin, you're in the wrong section.

Um who's in the wrong section?

[hheight]

It depends on many factors: electricity cost, room equipment, rent price, and the most important - what coin you'll mine.
Check WhatToMine.com, subtract from this all the above factors and you'll have approximate earnings per day.