90=-6+3(3n+8)

Solution for 90=-6+3(3n+8) equation:

90=-6+3(3n+8)

We move all terms to the left:

90-(-6+3(3n+8))=0


We calculate terms in parentheses: -(-6+3(3n+8)), so:

-6+3(3n+8)

determiningTheFunctionDomain
3(3n+8)-6

We multiply parentheses

9n+24-6

We add all the numbers together, and all the variables

9n+18

Back to the equation:

-(9n+18)


We get rid of parentheses

-9n-18+90=0

We add all the numbers together, and all the variables

-9n+72=0

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

-9n=-72

n=-72/-9

n=+8