Answers

2015-07-22T17:33:50+08:00
The answer is -8

solution:
-9--1
=-9+1
=-8
0
2015-07-22T18:12:42+08:00
-9 -1 = -10 dahil pareho silang negative kaya ang nangyari ay pinagadd natin ang dalawang negative kaya naging -10
0