Question

resolver 14-{-9-[15-(16+31)]-[-12+(-8-7)]}

Answer 1

14-{-9-[15-47]- [-12-15]}
14-{[-9-(-32)] - (-27)}
(14- 23) + 27
 -9 + 27 = 18

Answer 2

14-{-9-[15-47]- [-12-15]}
14-{[-9-(-32)] - (-27)}
(14- 23) + 27
(-9)+27=+18