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0.8w-0.5w+0.2=3
We move all terms to the left:
0.8w-0.5w+0.2-(3)=0
We add all the numbers together, and all the variables
0.3w-2.8=0
We move all terms containing w to the left, all other terms to the right
0.3w=2.8
w=2.8/0.3
w=9+0.1/0.3
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