-(8r+8)-11=-9(2r-9)

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Solution for -(8r+8)-11=-9(2r-9) equation: 



-(8r+8)-11=-9(2r-9)

We move all terms to the left:

-(8r+8)-11-(-9(2r-9))=0

We get rid of parentheses

-8r-(-9(2r-9))-8-11=0



We calculate terms in parentheses: -(-9(2r-9)), so:

-9(2r-9)

We multiply parentheses

-18r+81

Back to the equation:

-(-18r+81)



We add all the numbers together, and all the variables

-8r-(-18r+81)-19=0

We get rid of parentheses

-8r+18r-81-19=0

We add all the numbers together, and all the variables

10r-100=0

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

10r=100

r=100/10

r=10

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