Respuesta :
You can try to solve it by hit and trial method as x and y are both natural numbers.
x = 5 and y = 2
x+y = 7
x = 5 and y = 2
x+y = 7
I did the trial and error method and got x as 5 because 2^5 = 32, and y as 2 because 3² = 9. 5 + 2 = 7, which would be your answer for x + y. I hope this helps!