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(2/3)*x-5 = 1/6 // - 1/6
(2/3)*x-(1/6)-5 = 0
(2/3)*x-1/6-5 = 0
2/3*x-31/6 = 0 // + 31/6
2/3*x = 31/6 // : 2/3
x = 31/6/2/3
x = 31/4
x = 31/4
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