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t in (-oo:+oo)
(4/5)*t+2/9 = -134/45 // + -134/45
(4/5)*t+2/9-(-134/45) = 0
(4/5)*t+2/9+134/45 = 0
4/5*t+16/5 = 0 // - 16/5
4/5*t = -16/5 // : 4/5
t = -16/5/4/5
t = -4
t = -4
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