Respuesta :

x
___ + 3= 4
13  
×13          ×13
_____________
x+3=4
    -3  -3
_______
x=4

Now you know what x is.

4  
__ + 4  O  4
13 

4+ 4/13= 4 4/13. That is greater. So its x/13 > 4