given x, y, u, v are real numbers such that x+y+u = 4; y+u+v = -5 ; u+v+x = 0; v+x+y = -8. Then xyuv = ?​

By Lyla

given x, y, u, v are real numbers such that x+y+u = 4; y+u+v = -5 ; u+v+x = 0; v+x+y = -8. Then xyuv = ?​

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Lyla

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