a -b =348
a / 2b=1 rest 65 ; a = 2b +65 inlocuim in prima relatie obtinem
2b +65 -b =348
2b -b =348 -65
b =283
a -283 =348
a =348+283
a =631
2)a+b+c =243
a/c =12 rest 7 ; a =12c +7
b /c =5 rest 2 ;b =5c +2 ; inlocuim pe a si b in prima relatie
12c +7 +5c +2 + c =243
18 c =243-7-2
18c =234
c =13
a = 12c +7
a =12 *13 +7
a =156 +7
a =163
b =5c +2
b =5 *13 +2
b =65 +2
b =67