-1=-r/2-1

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



-1=-r/2-1

We move all terms to the left:

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

We get rid of parentheses

r/2+1-1=0

We multiply all the terms by the denominator


r+1*2-1*2=0

We add all the numbers together, and all the variables

r=0

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