-165=3(10n+5)

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Solution for -165=3(10n+5) equation: 



-165=3(10n+5)

We move all terms to the left:

-165-(3(10n+5))=0



We calculate terms in parentheses: -(3(10n+5)), so:

3(10n+5)

We multiply parentheses

30n+15

Back to the equation:

-(30n+15)



We get rid of parentheses

-30n-15-165=0

We add all the numbers together, and all the variables

-30n-180=0

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

-30n=180

n=180/-30

n=-6

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