4n+8n+13=121

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Solution for 4n+8n+13=121 equation: 



4n+8n+13=121

We move all terms to the left:

4n+8n+13-(121)=0

We add all the numbers together, and all the variables

12n-108=0

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

12n=108

n=108/12

n=9

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