-9(r-3)=-11(3-r)

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Solution for -9(r-3)=-11(3-r) equation: 



-9(r-3)=-11(3-r)

We move all terms to the left:

-9(r-3)-(-11(3-r))=0

We add all the numbers together, and all the variables

-9(r-3)-(-11(-1r+3))=0

We multiply parentheses

-9r-(-11(-1r+3))+27=0



We calculate terms in parentheses: -(-11(-1r+3)), so:

-11(-1r+3)

We multiply parentheses

11r-33

Back to the equation:

-(11r-33)



We get rid of parentheses

-9r-11r+33+27=0

We add all the numbers together, and all the variables

-20r+60=0

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

-20r=-60

r=-60/-20

r=+3

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