1) The document presents a system of 3 equations with variables X, Y, and Z: X + Y + Z = 6, X^2 + Y^2 + Z^2 = 12, and X^3 + Y^3 + Z^3 = 24. 2) It solves the system of equations by squaring the first equation, multiplying the first by the second, and multiplying the first by the third equation derived from the second to get XYZ = 8. 3) Using the formula for a cubic polynomial, it deduces the common solutions are the roots of the cubic equation x^3 - 6x^2 + 12x - 8 = 0. Therefore, the solutions are X = Y