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w/2+(-0.4)=0.5
We move all terms to the left:
w/2+(-0.4)-(0.5)=0
We add all the numbers together, and all the variables
w/2-0.9=0
We multiply all the terms by the denominator
w-(0.9)*2=0
We add all the numbers together, and all the variables
w-1.8=0
We move all terms containing w to the left, all other terms to the right
w=1.8
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