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11(n-7)=9
We move all terms to the left:
11(n-7)-(9)=0
We multiply parentheses
11n-77-9=0
We add all the numbers together, and all the variables
11n-86=0
We move all terms containing n to the left, all other terms to the right
11n=86
n=86/11
n=7+9/11
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