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13.8w=-13.16+12.4w
We move all terms to the left:
13.8w-(-13.16+12.4w)=0
We add all the numbers together, and all the variables
13.8w-(12.4w-13.16)=0
We get rid of parentheses
13.8w-12.4w+13.16=0
We add all the numbers together, and all the variables
1.4w+13.16=0
We move all terms containing w to the left, all other terms to the right
1.4w=-13.16
w=-13.16/1.4
w=-9+0.56/1.4
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