12=-1/4r

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Solution for 12=-1/4r equation: 



12=-1/4r

We move all terms to the left:

12-(-1/4r)=0



Domain of the equation: 4r)!=0

r!=0/1

r!=0

r∈R



We get rid of parentheses

1/4r+12=0

We multiply all the terms by the denominator


12*4r+1=0

Wy multiply elements

48r+1=0

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

48r=-1

r=-1/48

r=-1/48

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