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12n-3+2n=19-8n
We move all terms to the left:
12n-3+2n-(19-8n)=0
We add all the numbers together, and all the variables
12n+2n-(-8n+19)-3=0
We add all the numbers together, and all the variables
14n-(-8n+19)-3=0
We get rid of parentheses
14n+8n-19-3=0
We add all the numbers together, and all the variables
22n-22=0
We move all terms containing n to the left, all other terms to the right
22n=22
n=22/22
n=1
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