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w/7-2.5=-13.7
We move all terms to the left:
w/7-2.5-(-13.7)=0
We add all the numbers together, and all the variables
w/7+11.2=0
We multiply all the terms by the denominator
w+(11.2)*7=0
We add all the numbers together, and all the variables
w+78.4=0
We move all terms containing w to the left, all other terms to the right
w=-78.4
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