30=3w+9

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Solution for 30=3w+9 equation:



30=3w+9
We move all terms to the left:
30-(3w+9)=0
We get rid of parentheses
-3w-9+30=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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