90=-2n+8(6+n)

Solution for 90=-2n+8(6+n) equation:

90=-2n+8(6+n)

We move all terms to the left:

90-(-2n+8(6+n))=0

We add all the numbers together, and all the variables

-(-2n+8(n+6))+90=0


We calculate terms in parentheses: -(-2n+8(n+6)), so:

-2n+8(n+6)

We multiply parentheses

-2n+8n+48

We add all the numbers together, and all the variables

6n+48

Back to the equation:

-(6n+48)


We get rid of parentheses

-6n-48+90=0

We add all the numbers together, and all the variables

-6n+42=0

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

-6n=-42

n=-42/-6

n=+7