3=(10n+9)

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Solution for 3=(10n+9) equation: 



3=(10n+9)

We move all terms to the left:

3-((10n+9))=0



We calculate terms in parentheses: -((10n+9)), so:

(10n+9)

We get rid of parentheses

10n+9

Back to the equation:

-(10n+9)



We get rid of parentheses

-10n-9+3=0

We add all the numbers together, and all the variables

-10n-6=0

We move all terms containing n to the left, all other terms to the right

-10n=6

n=6/-10

n=-3/5

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