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103=130-w
We move all terms to the left:
103-(130-w)=0
We add all the numbers together, and all the variables
-(-1w+130)+103=0
We get rid of parentheses
1w-130+103=0
We add all the numbers together, and all the variables
w-27=0
We move all terms containing w to the left, all other terms to the right
w=27
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