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-2.1+w/3=-6.9
We move all terms to the left:
-2.1+w/3-(-6.9)=0
We add all the numbers together, and all the variables
w/3+4.8=0
We multiply all the terms by the denominator
w+(4.8)*3=0
We add all the numbers together, and all the variables
w+14.4=0
We move all terms containing w to the left, all other terms to the right
w=-14.4
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