Resposta:
(a) 6 (b)10 (c)30 (d)4 (e)9 (f)-5 (g)-7 (h)12 (i)13 (j)8 (k)-2 (l)20
(m)-6 (n)18 (o)17 (p)11 (q)16 (r)3 (s)-12 (t)2 (u)21 (v)-11
Explicação passo-a-passo:
