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28+19w=-18+15w
We move all terms to the left:
28+19w-(-18+15w)=0
We add all the numbers together, and all the variables
19w-(15w-18)+28=0
We get rid of parentheses
19w-15w+18+28=0
We add all the numbers together, and all the variables
4w+46=0
We move all terms containing w to the left, all other terms to the right
4w=-46
w=-46/4
w=-11+1/2
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