27+7r=2(7r-4)

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Solution for 27+7r=2(7r-4) equation: 



27+7r=2(7r-4)

We move all terms to the left:

27+7r-(2(7r-4))=0



We calculate terms in parentheses: -(2(7r-4)), so:

2(7r-4)

We multiply parentheses

14r-8

Back to the equation:

-(14r-8)



We get rid of parentheses

7r-14r+8+27=0

We add all the numbers together, and all the variables

-7r+35=0

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

-7r=-35

r=-35/-7

r=+5

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