(-5(5+2n))-6=-81

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Solution for (-5(5+2n))-6=-81 equation: 



(-5(5+2n))-6=-81

We move all terms to the left:

(-5(5+2n))-6-(-81)=0

We add all the numbers together, and all the variables

(-5(2n+5))-6-(-81)=0

We add all the numbers together, and all the variables

(-5(2n+5))+75=0



We calculate terms in parentheses: +(-5(2n+5)), so:

-5(2n+5)

We multiply parentheses

-10n-25

Back to the equation:

+(-10n-25)



We get rid of parentheses

-10n-25+75=0

We add all the numbers together, and all the variables

-10n+50=0

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

-10n=-50

n=-50/-10

n=+5

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