-3=-3-3r

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



-3=-3-3r

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

3r+3-3=0

We add all the numbers together, and all the variables

3r=0

r=0/3

r=0

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