16=-6+4(r+9)

Solution for 16=-6+4(r+9) equation:

16=-6+4(r+9)

We move all terms to the left:

16-(-6+4(r+9))=0


We calculate terms in parentheses: -(-6+4(r+9)), so:

-6+4(r+9)

determiningTheFunctionDomain
4(r+9)-6

We multiply parentheses

4r+36-6

We add all the numbers together, and all the variables

4r+30

Back to the equation:

-(4r+30)


We get rid of parentheses

-4r-30+16=0

We add all the numbers together, and all the variables

-4r-14=0

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

-4r=14

r=14/-4

r=-3+1/2