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Posted by: dannyboy

Sorry again, the previous question on intergers was a table. Rack your brain on the question. You can view it from the attachment below. Thanks.

1) X+4 = 1 => X=-3
2) X+e = 7 => e=10
3) Z+10 = 10 => Z=0
4) Y+4 = -5 => Y=9
5) Z+4 = m => m=4
6) -9+e = n => n=1
Therefore, m+n = 4+1 = 5
so correct answer is C

i didn't even know what an "additon table" is until i googled it...haha..