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3(n-2)*5=9
We move all terms to the left:
3(n-2)*5-(9)=0
We multiply parentheses
15n-30-9=0
We add all the numbers together, and all the variables
15n-39=0
We move all terms containing n to the left, all other terms to the right
15n=39
n=39/15
n=2+3/5
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