-1r-3=-1-3r

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



-1r-3=-1-3r

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

-1r+3r+1-3=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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