Respuestas

2012-04-07T08:46:11+02:00

sale  x/3=x-16

           x=3x-48

         48=2x

         24=x

 

2012-04-07T10:40:51+02:00

x/3=x-16

x/3-x=-16

-2/3x=-16   /*(-3/2)

x=24