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t in (-oo:+oo)
(-6/7)*(4*t+6) = (3/28)*t-11 // - (3/28)*t-11
(-6/7)*(4*t+6)-((3/28)*t)+11 = 0
(-6/7)*(4*t+6)+(-3/28)*t+11 = 0
(-3*t)/28-6/7*(4*t+6)+11 = 0
(-6/7*28*(4*t+6))/28+(-3*t)/28+(11*28)/28 = 0
11*28-6/7*28*(4*t+6)-3*t = 0
308-99*t-144 = 0
164-99*t = 0
(164-99*t)/28 = 0
(164-99*t)/28 = 0 // * 28
164-99*t = 0
164-99*t = 0 // - 164
-99*t = -164 // : -99
t = -164/(-99)
t = 164/99
t = 164/99
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