What is the equation of a hyperbola if the center is at (2, -3), the vertices are at (-1, -3) and (5, -3), and the distance between the foci is 6 units?
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Find the value of x in the equation 3(x + 4) = 2(x - 1) + 5.
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What is the unit vector in the direction of vector v = (3, -4)?