12=18-2w

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Solution for 12=18-2w equation: 



12=18-2w

We move all terms to the left:

12-(18-2w)=0

We add all the numbers together, and all the variables

-(-2w+18)+12=0

We get rid of parentheses

2w-18+12=0

We add all the numbers together, and all the variables

2w-6=0

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

2w=6

w=6/2

w=3

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