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11+8n=-1-2n
We move all terms to the left:
11+8n-(-1-2n)=0
We add all the numbers together, and all the variables
8n-(-2n-1)+11=0
We get rid of parentheses
8n+2n+1+11=0
We add all the numbers together, and all the variables
10n+12=0
We move all terms containing n to the left, all other terms to the right
10n=-12
n=-12/10
n=-1+1/5
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