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7w/2=20
We move all terms to the left:
7w/2-(20)=0
We multiply all the terms by the denominator
7w-20*2=0
We add all the numbers together, and all the variables
7w-40=0
We move all terms containing w to the left, all other terms to the right
7w=40
w=40/7
w=5+5/7
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