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(3*x-6)/18 = 1/6 // - 1/6
(3*x-6)/18-(1/6) = 0
(3*x-6)/18-1/6 = 0
(6*(3*x-6))/(6*18)+(-1*18)/(6*18) = 0
6*(3*x-6)-1*18 = 0
18*x-54 = 0
(18*x-54)/(6*18) = 0
(18*x-54)/(6*18) = 0 // * 6*18
18*x-54 = 0
18*x-54 = 0 // + 54
18*x = 54 // : 18
x = 54/18
x = 3
x = 3
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