-3r-5=-12

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Solution for -3r-5=-12 equation: 



-3r-5=-12

We move all terms to the left:

-3r-5-(-12)=0

We add all the numbers together, and all the variables

-3r+7=0

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

-3r=-7

r=-7/-3

r=2+1/3

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