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a in (-oo:+oo)
(3/2)*a-14 = 75 // - 75
(3/2)*a-75-14 = 0
3/2*a-89 = 0 // + 89
3/2*a = 89 // : 3/2
a = 89/3/2
a = 178/3
a = 178/3
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