X=-1-9(x-9)

Solution for X=-1-9(x-9) equation:

X=-1-9(X-9)

We move all terms to the left:

X-(-1-9(X-9))=0


We calculate terms in parentheses: -(-1-9(X-9)), so:

-1-9(X-9)

determiningTheFunctionDomain
-9(X-9)-1

We multiply parentheses

-9X+81-1

We add all the numbers together, and all the variables

-9X+80

Back to the equation:

-(-9X+80)


We get rid of parentheses

X+9X-80=0

We add all the numbers together, and all the variables

10X-80=0

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

10X=80

X=80/10

X=8