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(9/2)*x = 1/6 // - 1/6
(9/2)*x-(1/6) = 0
(9/2)*x-1/6 = 0
9/2*x-1/6 = 0 // + 1/6
9/2*x = 1/6 // : 9/2
x = 1/6/9/2
x = 1/27
x = 1/27
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