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2+w/5=-18
We move all terms to the left:
2+w/5-(-18)=0
We add all the numbers together, and all the variables
w/5+20=0
We multiply all the terms by the denominator
w+20*5=0
We add all the numbers together, and all the variables
w+100=0
We move all terms containing w to the left, all other terms to the right
w=-100
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