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-2+w/5=-7
We move all terms to the left:
-2+w/5-(-7)=0
We add all the numbers together, and all the variables
w/5+5=0
We multiply all the terms by the denominator
w+5*5=0
We add all the numbers together, and all the variables
w+25=0
We move all terms containing w to the left, all other terms to the right
w=-25
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