8w+w=21

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Solution for 8w+w=21 equation: 



8w+w=21

We move all terms to the left:

8w+w-(21)=0

We add all the numbers together, and all the variables

9w-21=0

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

9w=21

w=21/9

w=2+1/3

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