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5.4=43.8-3w
We move all terms to the left:
5.4-(43.8-3w)=0
We add all the numbers together, and all the variables
-(-3w+43.8)+5.4=0
We get rid of parentheses
3w-43.8+5.4=0
We add all the numbers together, and all the variables
3w-38.4=0
We move all terms containing w to the left, all other terms to the right
3w=38.4
w=38.4/3
w=12+2.4/3
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