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t in (-oo:+oo)
5*(4-(6*t)) = 350 // - 350
5*(4-(6*t))-350 = 0
5*(4-6*t)-350 = 0
5*(4-6*t)-350 = 0
-30*t-330 = 0
-30*t-330 = 0
-30*t-330 = 0 // + 330
-30*t = 330 // : -30
t = 330/(-30)
t = -11
t = -11
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