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Y = Aporte de cada uno
XY = 1200
Y - X = 194
Y = 1200/X
(1200/X) - X = 194
(1200 - X²)/X = 194
1200 - X² = 194X
0 = X² + 194X - 1200; donde a = 1; b = 194; c = -1200
X1=[-194 + 206]/2 = 6
X2 = [-194 - 206]/2 = -200
Uso X1 = 6
Rta: 6 personas