-9(-2-1)=-1+2(8r+8)

Solution for -9(-2-1)=-1+2(8r+8) equation:

-9(-2-1)=-1+2(8r+8)

We move all terms to the left:

-9(-2-1)-(-1+2(8r+8))=0

We add all the numbers together, and all the variables

-(-1+2(8r+8))-9(-3)=0

We add all the numbers together, and all the variables

-(-1+2(8r+8))+27=0


We calculate terms in parentheses: -(-1+2(8r+8)), so:

-1+2(8r+8)

determiningTheFunctionDomain
2(8r+8)-1

We multiply parentheses

16r+16-1

We add all the numbers together, and all the variables

16r+15

Back to the equation:

-(16r+15)


We get rid of parentheses

-16r-15+27=0

We add all the numbers together, and all the variables

-16r+12=0

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

-16r=-12

r=-12/-16

r=3/4