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28+12.50w=20+14.50w
We move all terms to the left:
28+12.50w-(20+14.50w)=0
We add all the numbers together, and all the variables
12.50w-(14.50w+20)+28=0
We get rid of parentheses
12.50w-14.50w-20+28=0
We add all the numbers together, and all the variables
-2w+8=0
We move all terms containing w to the left, all other terms to the right
-2w=-8
w=-8/-2
w=+4
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