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-4.8+7.9N=13.89
We move all terms to the left:
-4.8+7.9N-(13.89)=0
We add all the numbers together, and all the variables
7.9N-18.69=0
We move all terms containing N to the left, all other terms to the right
7.9N=18.69
N=18.69/7.9
N=2+2.89/7.9
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