-3/r=12

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Solution for -3/r=12 equation: 



-3/r=12

We move all terms to the left:

-3/r-(12)=0



Domain of the equation: r!=0

r∈R



We multiply all the terms by the denominator


-12*r-3=0

We add all the numbers together, and all the variables

-12r-3=0

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

-12r=3

r=3/-12

r=-1/4

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