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18*x-(11/4) = X // - X
18*x-X-(11/4) = 0
18*x-X-11/4 = 0
18*x-X-11/4 = 0 // + -X-11/4
18*x = -(-X-11/4) // : 18
x = (-(-X-11/4))/18
x = (X+11/4)/18
x = (X+11/4)/18
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