90=5(-2+n)

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



90=5(-2+n)

We move all terms to the left:

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

We add all the numbers together, and all the variables

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



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

5(n-2)

We multiply parentheses

5n-10

Back to the equation:

-(5n-10)



We get rid of parentheses

-5n+10+90=0

We add all the numbers together, and all the variables

-5n+100=0

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

-5n=-100

n=-100/-5

n=+20

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