13+7.7n=7+8n

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Solution for 13+7.7n=7+8n equation: 



13+7.7n=7+8n

We move all terms to the left:

13+7.7n-(7+8n)=0

We add all the numbers together, and all the variables

7.7n-(8n+7)+13=0

We get rid of parentheses

7.7n-8n-7+13=0

We add all the numbers together, and all the variables

-0.3n+6=0

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

-0.3n=-6

n=-6/-0.3

n=+20

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