Răspuns :
( a - 3) x 3 + 3 : 3 = 8
(a - 3) x 3 + 1 = 8
(a - 3) x 3 = 8 - 1
(a - 3) x 3 = 7
a - 3 = 7/3
a = (7/3) + 3
a = (7+9)/3 = 16/3
a = 5,(3)
( a - 3) x 3 + 3 : 3 = 8
(a - 3) x 3 + 1 = 8
(a - 3) x 3 = 8 - 1
(a - 3) x 3 = 7
a - 3 = 7/3
a = (7/3) + 3
a = (7+9)/3 = 16/3
a = 5,(3)