-12=r/2-6

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Solution for -12=r/2-6 equation: 



-12=r/2-6

We move all terms to the left:

-12-(r/2-6)=0

We get rid of parentheses

-r/2+6-12=0

We multiply all the terms by the denominator


-r+6*2-12*2=0

We add all the numbers together, and all the variables

-1r-12=0

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

-r=12

r=12/-1

r=-12

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