86=2+2(6+6r)

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Solution for 86=2+2(6+6r) equation: 



86=2+2(6+6r)

We move all terms to the left:

86-(2+2(6+6r))=0

We add all the numbers together, and all the variables

-(2+2(6r+6))+86=0



We calculate terms in parentheses: -(2+2(6r+6)), so:

2+2(6r+6)

determiningTheFunctionDomain
2(6r+6)+2

We multiply parentheses

12r+12+2

We add all the numbers together, and all the variables

12r+14

Back to the equation:

-(12r+14)



We get rid of parentheses

-12r-14+86=0

We add all the numbers together, and all the variables

-12r+72=0

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

-12r=-72

r=-72/-12

r=+6

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