Respuestas

2013-07-04T19:00:31+02:00
(x-1) /3 = 4 + [(x+1) /5] ahora resuelve :)
2013-07-04T19:04:29+02:00
((x-1)/3) - 4 = (x+1)/5
((x-1)/3) - 12/3 = (x+1)/5
(x-1-12)/3 = (x+1)/5
(x-13)/3 = (x+1)/5
5(x-13) = 3(x+1)
5x - 65 = 3x+1
5x-3x = 65+1
2x = 66
x= 66/2
x= 33