r-84=6r-4

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Solution for r-84=6r-4 equation: 



r-84=6r-4

We move all terms to the left:

r-84-(6r-4)=0

We get rid of parentheses

r-6r+4-84=0

We add all the numbers together, and all the variables

-5r-80=0

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

-5r=80

r=80/-5

r=-16

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