2=r-12

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Solution for 2=r-12 equation: 



2=r-12

We move all terms to the left:

2-(r-12)=0

We get rid of parentheses

-r+12+2=0

We add all the numbers together, and all the variables

-1r+14=0

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

-r=-14

r=-14/-1

r=+14

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