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t in (-oo:+oo)
134 = 2-7*t-(4*t) // - 2-7*t-(4*t)
4*t-(-7*t)-2+134 = 0
7*t+4*t-2+134 = 0
11*t+132 = 0 // - 132
11*t = -132 // : 11
t = -132/11
t = -12
t = -12
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