Answers

2014-04-21T14:51:33+08:00
Using the PEMDAS technique:

[-5 - 9]+ 5 \\ 
-14 + 5  \\ 
-9 \\
0
2014-04-22T21:38:51+08:00
First multiply -8 to -9 then add it to 3 and the answer will be then aded to +5
1 5 1