Răspuns :
Răspuns:
x,y € N
x-y=16 => x=16+y
(x+y)-16=24
x+y=24+16
x+y=40
16+y+y=40
2y=40-16
2y=24
y=24:2
y=12
x=16+y => x=16+12 x=28
VERIFICARE:
x-y=16
x=28
y=12
28-12=16
16=16
Răspuns:
x,y € N
x-y=16 => x=16+y
(x+y)-16=24
x+y=24+16
x+y=40
16+y+y=40
2y=40-16
2y=24
y=24:2
y=12
x=16+y => x=16+12 x=28
VERIFICARE:
x-y=16
x=28
y=12
28-12=16
16=16