4=12r-12

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Solution for 4=12r-12 equation: 



4=12r-12

We move all terms to the left:

4-(12r-12)=0

We get rid of parentheses

-12r+12+4=0

We add all the numbers together, and all the variables

-12r+16=0

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

-12r=-16

r=-16/-12

r=1+1/3

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