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(2*x)/3-(5/13) = 37/39 // - 37/39
(2*x)/3-(5/13)-(37/39) = 0
(2*x)/3-5/13-37/39 = 0
2/3*x-4/3 = 0 // + 4/3
2/3*x = 4/3 // : 2/3
x = 4/3/2/3
x = 2
x = 2
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