w+9=9w-7

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Solution for w+9=9w-7 equation: 



w+9=9w-7

We move all terms to the left:

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

We get rid of parentheses

w-9w+7+9=0

We add all the numbers together, and all the variables

-8w+16=0

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

-8w=-16

w=-16/-8

w=+2

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