Fill inthe blanks.
(a) (−8) + _____ = 0
(b) 13 +_____ = 0
(c) 12 +(− 12) = _____
(d) (−4) + _____ = − 12
(e) _____− 15 = − 10
Fill in the blanks to make the following statements true: \( [13 + (- 12)] + () = 13 + [(- 12) + (- 7)]\)