7.8=-1.3n

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Solution for 7.8=-1.3n equation: 



7.8=-1.3n

We move all terms to the left:

7.8-(-1.3n)=0

We get rid of parentheses

1.3n+7.8=0

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

1.3n=-7.8

n=-7.8/1.3

n=-6+-8.8817841970013E-16/1.3

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