27=7+4r

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Solution for 27=7+4r equation: 



27=7+4r

We move all terms to the left:

27-(7+4r)=0

We add all the numbers together, and all the variables

-(4r+7)+27=0

We get rid of parentheses

-4r-7+27=0

We add all the numbers together, and all the variables

-4r+20=0

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

-4r=-20

r=-20/-4

r=+5

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