r-1-r=6+r

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Solution for r-1-r=6+r equation: 



r-1-r=6+r

We move all terms to the left:

r-1-r-(6+r)=0

We add all the numbers together, and all the variables

r-r-(r+6)-1=0

We add all the numbers together, and all the variables

-(r+6)-1=0

We get rid of parentheses

-r-6-1=0

We add all the numbers together, and all the variables

-1r-7=0

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

-r=7

r=7/-1

r=-7

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