12r-4=r

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Solution for 12r-4=r equation: 



12r-4=r

We move all terms to the left:

12r-4-(r)=0

We add all the numbers together, and all the variables

11r-4=0

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

11r=4

r=4/11

r=4/11

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