9-6w=7w-21-3w

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Solution for 9-6w=7w-21-3w equation: 



9-6w=7w-21-3w

We move all terms to the left:

9-6w-(7w-21-3w)=0

We add all the numbers together, and all the variables

-6w-(4w-21)+9=0

We get rid of parentheses

-6w-4w+21+9=0

We add all the numbers together, and all the variables

-10w+30=0

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

-10w=-30

w=-30/-10

w=+3

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