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254=130-w
We move all terms to the left:
254-(130-w)=0
We add all the numbers together, and all the variables
-(-1w+130)+254=0
We get rid of parentheses
1w-130+254=0
We add all the numbers together, and all the variables
w+124=0
We move all terms containing w to the left, all other terms to the right
w=-124
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