Răspuns :
(b-5) * 9 + 4 *164 * 7 - 5609=0
(b-5) * 9 + 4592 - 5609 = 0
(b-5) * 9 = 1017 (duci 4592 - 5609 dupa egal)
b-5 = 1017/9
b-5 = 113
b= 113 +5
b= 118
(b-5) * 9 + 4592 - 5609 = 0
(b-5) * 9 = 1017 (duci 4592 - 5609 dupa egal)
b-5 = 1017/9
b-5 = 113
b= 113 +5
b= 118