w+(-2w)=18

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Solution for w+(-2w)=18 equation: 



w+(-2w)=18

We move all terms to the left:

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

We get rid of parentheses

w-2w-18=0

We add all the numbers together, and all the variables

-1w-18=0

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

-w=18

w=18/-1

w=-18

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