Răspuns :
49 : c × 6 = 84 : 2
49 : c × 6 = 42
49 : c = 42 : 6
49 : c = 7
c = 49 : 7
c = 7 => numărul aflat
49 : c × 6 = 42
49 : c = 42 : 6
49 : c = 7
c = 49 : 7
c = 7 => numărul aflat
49 : c × 6 = 84 : 2
49 : c × 6 = 42
49 : c = 42 : 6
49 : c = 7
c = 49 : 7
c = 7