39+2r=8-(-1-7r)

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Solution for 39+2r=8-(-1-7r) equation: 



39+2r=8-(-1-7r)

We move all terms to the left:

39+2r-(8-(-1-7r))=0

We add all the numbers together, and all the variables

2r-(8-(-7r-1))+39=0



We calculate terms in parentheses: -(8-(-7r-1)), so:

8-(-7r-1)

determiningTheFunctionDomain
-(-7r-1)+8

We get rid of parentheses

7r+1+8

We add all the numbers together, and all the variables

7r+9

Back to the equation:

-(7r+9)



We get rid of parentheses

2r-7r-9+39=0

We add all the numbers together, and all the variables

-5r+30=0

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

-5r=-30

r=-30/-5

r=+6

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