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8n-(2n-3)=13
We move all terms to the left:
8n-(2n-3)-(13)=0
We get rid of parentheses
8n-2n+3-13=0
We add all the numbers together, and all the variables
6n-10=0
We move all terms containing n to the left, all other terms to the right
6n=10
n=10/6
n=1+2/3
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