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2.8=1.4w
We move all terms to the left:
2.8-(1.4w)=0
We add all the numbers together, and all the variables
-(+1.4w)+2.8=0
We get rid of parentheses
-1.4w+2.8=0
We move all terms containing w to the left, all other terms to the right
-1.4w=-2.8
w=-2.8/-1.4
w=+2
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