# How do you simplify #-3+10-9#?

In order to simplify an expression, we simply collect the like terms in the expression, working from left to right:

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To simplify ( -3 + 10 - 9 ), you add and subtract the numbers:

( -3 + 10 = 7 )

Then, ( 7 - 9 = -2 )

So, ( -3 + 10 - 9 = -2 ).

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