Question 395865
Unfortunately, that's incorrect.


-|10|+|10| = 0 because -|10| = -10 and |10| = 10


So 


-|10|+|10| = 0 
-10+10 = 0 
10 - 10 = 0
0 = 0


You're thinking of |-10|+|10|



For the other two...



|-10 + 10| = |10-10| = |0| = 0



-|-10 + 10| = -|10-10| = -|0| = -0 = 0



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Jim