Răspunsuri

2014-10-14T11:38:54+03:00
Notam numarul initial cu A
[(A x 7 + 943) - 7369] :3=91
(7A + 943) - 7369= 91x3
(7A + 943) - 7369= 273
7A +943= 273+7369
7A + 943= 7642
7A = 7642-943
7A= 6699
A =957