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2w/9=-10
We move all terms to the left:
2w/9-(-10)=0
We add all the numbers together, and all the variables
2w/9+10=0
We multiply all the terms by the denominator
2w+10*9=0
We add all the numbers together, and all the variables
2w+90=0
We move all terms containing w to the left, all other terms to the right
2w=-90
w=-90/2
w=-45
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