Răspuns :
Z:[960:3+13x5-(3x100+8x10)]=123 rest 4
Z:[960:3+13x5-(300+8X10)]=123rest4
Z:[960:3+13x5-(300+80)=]123rest4
Z:(960:3+13X5-380)=123rest4
Z:(960:3+65-380)=123rest4
Z:(320+65-380)=123rest4
Z:(385-380)=123rest4
Z=5X123+4
Z=615+4
Z=619
Z:[960:3+13x5-(300+8X10)]=123rest4
Z:[960:3+13x5-(300+80)=]123rest4
Z:(960:3+13X5-380)=123rest4
Z:(960:3+65-380)=123rest4
Z:(320+65-380)=123rest4
Z:(385-380)=123rest4
Z=5X123+4
Z=615+4
Z=619