Respuestas

2012-06-28T02:05:30+02:00

40+y=90

y=50

x-y

___=40

2

x=130

y=50

x=130

2012-06-28T02:26:29+02:00

94=x+y/2.......188=x+y

40=x-y/2........80=x-y

x=134

y=54