12r+7=6r-11

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Solution for 12r+7=6r-11 equation: 



12r+7=6r-11

We move all terms to the left:

12r+7-(6r-11)=0

We get rid of parentheses

12r-6r+11+7=0

We add all the numbers together, and all the variables

6r+18=0

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

6r=-18

r=-18/6

r=-3

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