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Leveraging on an investment allows for you to claim a multiplier on your investment.

You have 1 STEEM. Invest it on 10x Leverage it acts as if it's invested as 10.. with 10x the risk.

If the 10 is lost, how does the system get the money?

The bankroll scales accordingly. You have greater risk of gaining or losing capital investment with leverage. As you win or lose on your investment your leverage changes.

Think of a system very similar to just-dice.com .. That site is a pretty good model of how investment will work on steem-roller.com :)

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