8n-9=12

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Solution for 8n-9=12 equation:



8n-9=12
We move all terms to the left:
8n-9-(12)=0
We add all the numbers together, and all the variables
8n-21=0
We move all terms containing n to the left, all other terms to the right
8n=21
n=21/8
n=2+5/8

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