13.9=2.5n

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Solution for 13.9=2.5n equation: 



13.9=2.5n

We move all terms to the left:

13.9-(2.5n)=0

We add all the numbers together, and all the variables

-(+2.5n)+13.9=0

We get rid of parentheses

-2.5n+13.9=0

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

-2.5n=-13.9

n=-13.9/-2.5

n=5+1/1.7857142857143

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