384 - {9 + [( - 15) - ( - 8)] - 17} + (8 - ( - 9)) = {78 - (78) + 78[( - 78) - ( - 78)]} = {4 + [8 - (5 - 2) + (7 - 3)] + [( - 3) - ( - 8) + 13]}3 - [(3 - 4) + 5 - (7 + 8) - (15 - 14) + (7 - 8)] = 5 -?
384 - {9 + [( - 15) - ( - 8)] - 17} + (8 - ( - 9)) = {78 - (78) + 78[( - 78) - ( - 78)]} = {4 + [8 - (5 - 2) + (7 - 3)] + [( - 3) - ( - 8) + 13]}3 - [(3 - 4) + 5 - (7 + 8) - (15 - 14) + (7 - 8)] = 5 - {( - 4) - [( - 3) + ( - 8)] - ( - 9 + 4)] + 8} + 0 = {[ - 3 + 2)] + ( - 4)} - {( - 1) + [ - ( - 4 + 1)} =.