Răspuns:
z: [320+65-(300+80)]=123 rest 4
z:(385-380)= 123 rest 4
z: 5 = 123 rest 4
z=5×123+4
z=615+4
z=619
verificare:
619: [960:3+13×5-(3×100+8×10)]=123 rest 4
619:[320+65-(300+80)]= 123 rest 4
619:(385-380)= 123 rest 4
619:5= 123 rest 4
Succes!
