Respuesta :

37 and the other one 63
x+y=100

x-y=26

add them equations

x+y=100
x-y=26 +
2x+0y=126

2x=126
divide both sides by 2
x=63

sub back
x+y=100
63+y=100
minus 63 both sides
y=37

the numbers are 63 and 37