r/(-3)=12

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Solution for r/(-3)=12 equation: 



r/(-3)=12

We move all terms to the left:

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

We multiply all the terms by the denominator


r-12*(-3)=0

We add all the numbers together, and all the variables

r+36=0

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

r=-36

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