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-136=8n+7
We move all terms to the left:
-136-(8n+7)=0
We get rid of parentheses
-8n-7-136=0
We add all the numbers together, and all the variables
-8n-143=0
We move all terms containing n to the left, all other terms to the right
-8n=143
n=143/-8
n=-17+7/8
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