Respuestas

2013-10-31T21:11:46+01:00
   6x+30-5x=25
    x + 30= 25
           x= 25/ 30
            x=5/6
2013-10-31T22:37:00+01:00
6x+30-5x=25 
    x + 30= 25
           x= 25/ 30
            x=5/6