-(1-8r)=-7-2(r+2)

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Solution for -(1-8r)=-7-2(r+2) equation: 



-(1-8r)=-7-2(r+2)

We move all terms to the left:

-(1-8r)-(-7-2(r+2))=0

We add all the numbers together, and all the variables

-(-8r+1)-(-7-2(r+2))=0

We get rid of parentheses

8r-(-7-2(r+2))-1=0



We calculate terms in parentheses: -(-7-2(r+2)), so:

-7-2(r+2)

determiningTheFunctionDomain
-2(r+2)-7

We multiply parentheses

-2r-4-7

We add all the numbers together, and all the variables

-2r-11

Back to the equation:

-(-2r-11)



We get rid of parentheses

8r+2r+11-1=0

We add all the numbers together, and all the variables

10r+10=0

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

10r=-10

r=-10/10

r=-1

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