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t in (-oo:+oo)
12*t = 45*(t-(1/4)) // - 45*(t-(1/4))
12*t-(45*(t-(1/4))) = 0
12*t-45*(t-1/4) = 0
12*t-45*(t-1/4) = 0
45/4-33*t = 0
45/4-33*t = 0
45/4-33*t = 0 // - 45/4
-33*t = -45/4 // : -33
t = -45/4/(-33)
t = 15/44
t = 15/44
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