-12.78+2.1n=-2.16n

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Solution for -12.78+2.1n=-2.16n equation: 



-12.78+2.1n=-2.16n

We move all terms to the left:

-12.78+2.1n-(-2.16n)=0

We get rid of parentheses

2.1n+2.16n-12.78=0

We add all the numbers together, and all the variables

4.26n-12.78=0

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

4.26n=12.78

n=12.78/4.26

n=3

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