12+9=4w

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Solution for 12+9=4w equation: 



12+9=4w

We move all terms to the left:

12+9-(4w)=0

We add all the numbers together, and all the variables

-4w+21=0

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

-4w=-21

w=-21/-4

w=5+1/4

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