12-2u=9u

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Solution for 12-2u=9u equation: 



12-2u=9u

We move all terms to the left:

12-2u-(9u)=0

We add all the numbers together, and all the variables

-11u+12=0

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

-11u=-12

u=-12/-11

u=1+1/11

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