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t in (-oo:+oo)
6*t-(4/9) = -584/99 // + -584/99
6*t-(4/9)-(-584/99) = 0
6*t-4/9+584/99 = 0
6*t+60/11 = 0 // - 60/11
6*t = -60/11 // : 6
t = -60/11/6
t = -10/11
t = -10/11
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