-3-12r=57

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Solution for -3-12r=57 equation: 



-3-12r=57

We move all terms to the left:

-3-12r-(57)=0

We add all the numbers together, and all the variables

-12r-60=0

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

-12r=60

r=60/-12

r=-5

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