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Calculati : a+b=55 si (a,b)=5

Răspuns :

(a;b)=5 =›a=5*x b=5*y (y;x)=1 a+b=55 5x+5y=55 5*(x+y)=55 |:5 X+y=11 =› x=1;4 y=4;1 =›a=4;51 b=51;4