Răspuns :
a+a=b
b-(1368+632)=6000 (succesorul nr.5999)
b-2000=6000
b=6000+2000
b=8000
a+a=8000
2a=8000
a=8000:2
a=4000
Deci nr.este 4000
b-(1368+632)=6000 (succesorul nr.5999)
b-2000=6000
b=6000+2000
b=8000
a+a=8000
2a=8000
a=8000:2
a=4000
Deci nr.este 4000
(x+x)-1368=6000
2x-2000=6000
2x=6000+2000
2x=8000
x=8000:2
x=4000
verificare
4000+4000-(1368+632)=6000
8000-2000=6000
2x-2000=6000
2x=6000+2000
2x=8000
x=8000:2
x=4000
verificare
4000+4000-(1368+632)=6000
8000-2000=6000