18r-12=12r+27

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Solution for 18r-12=12r+27 equation: 



18r-12=12r+27

We move all terms to the left:

18r-12-(12r+27)=0

We get rid of parentheses

18r-12r-27-12=0

We add all the numbers together, and all the variables

6r-39=0

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

6r=39

r=39/6

r=6+1/2

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