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(6/5) (y-2) = 120
(x)(y) = (6x/5)(y-2)
xy =6xy/5 - 12x/5
5xy = 6xy - 12x
12x = 6xy - 5xy
12x = xy
y = 12
12x = 120
x = 120:12
x = 10
Eran 10 personas y les tocó $12
si hubieran sido 12 personas les habría tocado $10 ($2 menos)
Verificacion
(x)(y) = (6x/5) * (y-2)
10 *12 = 6*10/5 * 12 - 2
120 = 60/5 * 10
120 = 12 * 10