6r-12=3r+27

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Solution for 6r-12=3r+27 equation: 



6r-12=3r+27

We move all terms to the left:

6r-12-(3r+27)=0

We get rid of parentheses

6r-3r-27-12=0

We add all the numbers together, and all the variables

3r-39=0

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

3r=39

r=39/3

r=13

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