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23.4=-1.3w
We move all terms to the left:
23.4-(-1.3w)=0
We get rid of parentheses
1.3w+23.4=0
We move all terms containing w to the left, all other terms to the right
1.3w=-23.4
w=-23.4/1.3
w=-18+-3.5527136788E-15/1.3
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