-r-1=1-2r

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Solution for -r-1=1-2r equation: 



-r-1=1-2r

We move all terms to the left:

-r-1-(1-2r)=0

We add all the numbers together, and all the variables

-r-(-2r+1)-1=0

We add all the numbers together, and all the variables

-1r-(-2r+1)-1=0

We get rid of parentheses

-1r+2r-1-1=0

We add all the numbers together, and all the variables

r-2=0

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

r=2

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