90=-2(-8n-5)

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Solution for 90=-2(-8n-5) equation: 



90=-2(-8n-5)

We move all terms to the left:

90-(-2(-8n-5))=0



We calculate terms in parentheses: -(-2(-8n-5)), so:

-2(-8n-5)

We multiply parentheses

16n+10

Back to the equation:

-(16n+10)



We get rid of parentheses

-16n-10+90=0

We add all the numbers together, and all the variables

-16n+80=0

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

-16n=-80

n=-80/-16

n=+5

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