Răspuns :
( a + 52 ) × 12 - 100 = 1 100
( a + 52 ) × 12 = 1 100 + 100
( a + 52 ) × 12 = 1 200
a + 52 = 1 200 : 12
a + 52 = 100
a = 100 - 52
a = 48 (numărul ales de Victor)
( a + 52 ) × 12 = 1 100 + 100
( a + 52 ) × 12 = 1 200
a + 52 = 1 200 : 12
a + 52 = 100
a = 100 - 52
a = 48 (numărul ales de Victor)