(5n-9)+(8n+7)=180

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Solution for (5n-9)+(8n+7)=180 equation: 



(5n-9)+(8n+7)=180

We move all terms to the left:

(5n-9)+(8n+7)-(180)=0

We get rid of parentheses

5n+8n-9+7-180=0

We add all the numbers together, and all the variables

13n-182=0

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

13n=182

n=182/13

n=14

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