Răspuns :
a + b + c = 63
a / 3 = c
a = 3 c
c / 2 = b = c = 2 b
63 / 9 = 7
b = 7
c = 14
a = 42
a __/__/__/__/__/__/
b __/
c __/__/
a / 3 = c
a = 3 c
c / 2 = b = c = 2 b
63 / 9 = 7
b = 7
c = 14
a = 42
a __/__/__/__/__/__/
b __/
c __/__/