30-9=3w

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Solution for 30-9=3w equation:



30-9=3w
We move all terms to the left:
30-9-(3w)=0
We add all the numbers together, and all the variables
-3w+21=0
We move all terms containing w to the left, all other terms to the right
-3w=-21
w=-21/-3
w=+7

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