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t in (-oo:+oo)
3*t-18 = 4*(-((4/3)*t)-3) // - 4*(-((4/3)*t)-3)
3*t-(4*(-((4/3)*t)-3))-18 = 0
3*t-4*((-4/3)*t-3)-18 = 0
3*t-4*(-4/3*t-3)-18 = 0
3*t-4*(-4/3*t-3)-18 = 0
25/3*t-18+12 = 0
25/3*t-6 = 0
25/3*t-6 = 0
25/3*t-6 = 0 // + 6
25/3*t = 6 // : 25/3
t = 6/25/3
t = 18/25
t = 18/25
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