84=6(r+2)

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Solution for 84=6(r+2) equation: 



84=6(r+2)

We move all terms to the left:

84-(6(r+2))=0



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

6(r+2)

We multiply parentheses

6r+12

Back to the equation:

-(6r+12)



We get rid of parentheses

-6r-12+84=0

We add all the numbers together, and all the variables

-6r+72=0

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

-6r=-72

r=-72/-6

r=+12

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