Respuestas

2013-02-20T06:57:54+01:00
2013-02-20T06:59:38+01:00
8/ y-1 = 12/60 8 = 12/60 (y-1) 8 = 12/60y - 12/60 8+ 12/60 = 12/60y 12/60y = 8 + 12/60 y = (8 + 12/60) \ 12/60