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x in (-oo:+oo)
x/39 = 8/9 // - 8/9
x/39-(8/9) = 0
x/39-8/9 = 0
1/39*x-8/9 = 0 // + 8/9
1/39*x = 8/9 // : 1/39
x = 8/9/1/39
x = 104/3
x = 104/3
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