6-8r=-8r-(9r-7)

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Solution for 6-8r=-8r-(9r-7) equation: 



6-8r=-8r-(9r-7)

We move all terms to the left:

6-8r-(-8r-(9r-7))=0



We calculate terms in parentheses: -(-8r-(9r-7)), so:

-8r-(9r-7)

We get rid of parentheses

-8r-9r+7

We add all the numbers together, and all the variables

-17r+7

Back to the equation:

-(-17r+7)



We get rid of parentheses

-8r+17r-7+6=0

We add all the numbers together, and all the variables

9r-1=0

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

9r=1

r=1/9

r=1/9

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