-(1-r)=-(1+3r)

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Solution for -(1-r)=-(1+3r) equation: 



-(1-r)=-(1+3r)

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

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



We calculate terms in parentheses: -(-(3r+1)), so:

-(3r+1)

We get rid of parentheses

-3r-1

Back to the equation:

-(-3r-1)



We add all the numbers together, and all the variables

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

We get rid of parentheses

r+3r+1-1=0

We add all the numbers together, and all the variables

4r=0

r=0/4

r=0

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