Răspuns :
a+b=841
a:b=419,1
a=419b+1
419b+1+b=841
420b=840
b=2
a+2=841
a=839
a:b=419,1
a=419b+1
419b+1+b=841
420b=840
b=2
a+2=841
a=839
[tex]Raspuns:\\
a+b=841\\
a:b=419~rest~1\\\
a=419b+1\\
419b+1+b=841\\
420b=840\\
=>b=2\\
a+2=841\\
=>a=839.[/tex]