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12.1=3w+8-0.5w
We move all terms to the left:
12.1-(3w+8-0.5w)=0
We add all the numbers together, and all the variables
-(2.5w+8)+12.1=0
We get rid of parentheses
-2.5w-8+12.1=0
We add all the numbers together, and all the variables
-2.5w+4.1=0
We move all terms containing w to the left, all other terms to the right
-2.5w=-4.1
w=-4.1/-2.5
w=1+1/1.5625
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