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276=139-w
We move all terms to the left:
276-(139-w)=0
We add all the numbers together, and all the variables
-(-1w+139)+276=0
We get rid of parentheses
1w-139+276=0
We add all the numbers together, and all the variables
w+137=0
We move all terms containing w to the left, all other terms to the right
w=-137
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