-9w-7=20-18w

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Solution for -9w-7=20-18w equation: 



-9w-7=20-18w

We move all terms to the left:

-9w-7-(20-18w)=0

We add all the numbers together, and all the variables

-9w-(-18w+20)-7=0

We get rid of parentheses

-9w+18w-20-7=0

We add all the numbers together, and all the variables

9w-27=0

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

9w=27

w=27/9

w=3

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