-2=-9+w

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Solution for -2=-9+w equation: 



-2=-9+w

We move all terms to the left:

-2-(-9+w)=0

We add all the numbers together, and all the variables

-(w-9)-2=0

We get rid of parentheses

-w+9-2=0

We add all the numbers together, and all the variables

-1w+7=0

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

-w=-7

w=-7/-1

w=+7

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