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Daca x ori y =23 si x ori a =45 aflati xori(a+y) si x ori (a-y)

Răspuns :

x*y=23, x=1 y=23
x*a=45, x=1 a=45
x(a+y)=1(45+23)=68
x(a-y)=1(45-23)=22
x(a+y)=xa+xy=45+32=77
x(a-y)=xa-xy=45-32=13