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8n+20=-
We move all terms to the left:
8n+20-(-)=0
We add all the numbers together, and all the variables
8n+20-0=0
We add all the numbers together, and all the variables
8n+20=0
We move all terms containing n to the left, all other terms to the right
8n=-20
n=-20/8
n=-2+1/2
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