6r+12=3r+18

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Solution for 6r+12=3r+18 equation: 



6r+12=3r+18

We move all terms to the left:

6r+12-(3r+18)=0

We get rid of parentheses

6r-3r-18+12=0

We add all the numbers together, and all the variables

3r-6=0

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

3r=6

r=6/3

r=2

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