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Y in (-oo:+oo)
Y = (-2/3)*(-78-2)-5 // - (-2/3)*(-78-2)-5
Y-((-2/3)*(-78-2))+5 = 0
Y+(2/3)*(-78-2)+5 = 0
Y-145/3 = 0 // + 145/3
Y = 145/3
Y = 145/3
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