6r+9=-(1-8r)

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Solution for 6r+9=-(1-8r) equation: 



6r+9=-(1-8r)

We move all terms to the left:

6r+9-(-(1-8r))=0

We add all the numbers together, and all the variables

6r-(-(-8r+1))+9=0



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

-(-8r+1)

We get rid of parentheses

8r-1

Back to the equation:

-(8r-1)



We get rid of parentheses

6r-8r+1+9=0

We add all the numbers together, and all the variables

-2r+10=0

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

-2r=-10

r=-10/-2

r=+5

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