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(3*x)/10 = 5/6 // - 5/6
(3*x)/10-(5/6) = 0
(3*x)/10-5/6 = 0
3/10*x-5/6 = 0 // + 5/6
3/10*x = 5/6 // : 3/10
x = 5/6/3/10
x = 25/9
x = 25/9
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