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6+w/2=-4
We move all terms to the left:
6+w/2-(-4)=0
We add all the numbers together, and all the variables
w/2+10=0
We multiply all the terms by the denominator
w+10*2=0
We add all the numbers together, and all the variables
w+20=0
We move all terms containing w to the left, all other terms to the right
w=-20
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