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3n+4.11=7.89
We move all terms to the left:
3n+4.11-(7.89)=0
We add all the numbers together, and all the variables
3n-3.78=0
We move all terms containing n to the left, all other terms to the right
3n=3.78
n=3.78/3
n=1+0.78/3
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