Răspuns :
a + b + c = -18
b = a + 1 (consecutive)
c = a + 2 (consecutive)
a + (a + 1) + (a + 2) = -18
3a + 3 = -18
3a = -21
a = -7
b = -6
c = -5
b = a + 1 (consecutive)
c = a + 2 (consecutive)
a + (a + 1) + (a + 2) = -18
3a + 3 = -18
3a = -21
a = -7
b = -6
c = -5