90=6(1+2n)

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Solution for 90=6(1+2n) equation: 



90=6(1+2n)

We move all terms to the left:

90-(6(1+2n))=0

We add all the numbers together, and all the variables

-(6(2n+1))+90=0



We calculate terms in parentheses: -(6(2n+1)), so:

6(2n+1)

We multiply parentheses

12n+6

Back to the equation:

-(12n+6)



We get rid of parentheses

-12n-6+90=0

We add all the numbers together, and all the variables

-12n+84=0

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

-12n=-84

n=-84/-12

n=+7

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