👤

728-d+121=344
778-e+110=888
466+f-244=222


Răspuns :

1.728+121-344=d
849-344=d
d=505
2.778+110-888=e
888-888=e
e=0
3.466+f=222+244
466+f=466
f=466-466
f=0


728-d=344-121=223
d=728-223=505

778-e+110=888
e=778+110-888=0
e=0

466+f-244=222
f=222+244-466=0