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12(n-3)-15=396
We move all terms to the left:
12(n-3)-15-(396)=0
We add all the numbers together, and all the variables
12(n-3)-411=0
We multiply parentheses
12n-36-411=0
We add all the numbers together, and all the variables
12n-447=0
We move all terms containing n to the left, all other terms to the right
12n=447
n=447/12
n=37+1/4
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