7w-8=9w

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Solution for 7w-8=9w equation: 



7w-8=9w

We move all terms to the left:

7w-8-(9w)=0

We add all the numbers together, and all the variables

-2w-8=0

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

-2w=8

w=8/-2

w=-4

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