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(5/6)*x+x+2/3 = 103/6 // - 103/6
(5/6)*x+x+2/3-(103/6) = 0
(5/6)*x+x+2/3-103/6 = 0
11/6*x-33/2 = 0 // + 33/2
11/6*x = 33/2 // : 11/6
x = 33/2/11/6
x = 9
x = 9
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