7n-5=8n-9

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Solution for 7n-5=8n-9 equation: 



7n-5=8n-9

We move all terms to the left:

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

We get rid of parentheses

7n-8n+9-5=0

We add all the numbers together, and all the variables

-1n+4=0

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

-n=-4

n=-4/-1

n=+4

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