Respuesta :

m = n - 2....sub in n - 2 for m in the other equation

m + 4n = 8
(n - 2) + 4n = 8
5n - 2 = 8
5n = 8 + 2
5n = 10
n = 2

m = n - 2
m = 2 - 2
m = 0

solution is : (0,2)