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12(^x^2-9)=9
We move all terms to the left:
12(^x^2-9)-(9)=0
We multiply parentheses
12x-108-9=0
We add all the numbers together, and all the variables
12x-117=0
We move all terms containing x to the left, all other terms to the right
12x=117
x=117/12
x=9+3/4
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