n+0.3n=39

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Solution for n+0.3n=39 equation: 



n+0.3n=39

We move all terms to the left:

n+0.3n-(39)=0

We add all the numbers together, and all the variables

1.3n-39=0

We move all terms containing n to the left, all other terms to the right

1.3n=39

n=39/1.3

n=30

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