27=7r-8

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Solution for 27=7r-8 equation: 



27=7r-8

We move all terms to the left:

27-(7r-8)=0

We get rid of parentheses

-7r+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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