15=9+2w

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Solution for 15=9+2w equation: 



15=9+2w

We move all terms to the left:

15-(9+2w)=0

We add all the numbers together, and all the variables

-(2w+9)+15=0

We get rid of parentheses

-2w-9+15=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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