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(5/6)*x-(3*x)+4/3 = 5/13 // - 5/13
(5/6)*x-(3*x)+4/3-(5/13) = 0
(5/6)*x-3*x+4/3-5/13 = 0
37/39-13/6*x = 0 // - 37/39
-13/6*x = -37/39 // : -13/6
x = -37/39/(-13/6)
x = 74/169
x = 74/169
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