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30n/30=2400/30
We move all terms to the left:
30n/30-(2400/30)=0
We add all the numbers together, and all the variables
30n/30-80=0
We multiply all the terms by the denominator
30n-80*30=0
We add all the numbers together, and all the variables
30n-2400=0
We move all terms containing n to the left, all other terms to the right
30n=2400
n=2400/30
n=80
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