Which equation demonstrates the opposite of a sum property? a. (22 + 10) + 3 = (10 + 22) + 3 b. –5 + 13 = 13 + (–5) c. (12 + (–4)) + 14 = 12 + ((–4) + 14) d. –(–6 + 17) = 6 + (–17)