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w/2-18=(-7)
We move all terms to the left:
w/2-18-((-7))=0
We add all the numbers together, and all the variables
w/2-11=0
We multiply all the terms by the denominator
w-11*2=0
We add all the numbers together, and all the variables
w-22=0
We move all terms containing w to the left, all other terms to the right
w=22
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