-2r+1-r=-2

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



-2r+1-r=-2

We move all terms to the left:

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

We add all the numbers together, and all the variables

-3r+3=0

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

-3r=-3

r=-3/-3

r=1

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