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230=42-w
We move all terms to the left:
230-(42-w)=0
We add all the numbers together, and all the variables
-(-1w+42)+230=0
We get rid of parentheses
1w-42+230=0
We add all the numbers together, and all the variables
w+188=0
We move all terms containing w to the left, all other terms to the right
w=-188
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