Respuesta :

konrad509
[tex]x+y=40\\ x-y=8\\ -----\\ 2x=48\\ x=24\\\\ 24+y=40\\ y=16[/tex]
6417
   a - b = 8
+ a + b = 40   
   2a = 48
     a = 24

a - b = 8
24 - b = 8
b = 16