r-3-3r=-1

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Solution for r-3-3r=-1 equation: 



r-3-3r=-1

We move all terms to the left:

r-3-3r-(-1)=0

We add all the numbers together, and all the variables

-2r-2=0

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

-2r=2

r=2/-2

r=-1

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