-12=-3/7r

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Solution for -12=-3/7r equation: 



-12=-3/7r

We move all terms to the left:

-12-(-3/7r)=0



Domain of the equation: 7r)!=0

r!=0/1

r!=0

r∈R



We get rid of parentheses

3/7r-12=0

We multiply all the terms by the denominator


-12*7r+3=0

Wy multiply elements

-84r+3=0

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

-84r=-3

r=-3/-84

r=1/28

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