81=3+6(1+6b)

Solution for 81=3+6(1+6b) equation:

81=3+6(1+6b)

We move all terms to the left:

81-(3+6(1+6b))=0

We add all the numbers together, and all the variables

-(3+6(6b+1))+81=0


We calculate terms in parentheses: -(3+6(6b+1)), so:

3+6(6b+1)

determiningTheFunctionDomain
6(6b+1)+3

We multiply parentheses

36b+6+3

We add all the numbers together, and all the variables

36b+9

Back to the equation:

-(36b+9)


We get rid of parentheses

-36b-9+81=0

We add all the numbers together, and all the variables

-36b+72=0

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

-36b=-72

b=-72/-36

b=+2