-57=-4+3r

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Solution for -57=-4+3r equation: 



-57=-4+3r

We move all terms to the left:

-57-(-4+3r)=0

We add all the numbers together, and all the variables

-(3r-4)-57=0

We get rid of parentheses

-3r+4-57=0

We add all the numbers together, and all the variables

-3r-53=0

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

-3r=53

r=53/-3

r=-17+2/3

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