Answer:
First problem: 7
Second problem: 2
Explanation:
|a+x|/2 - |a-x|/2
|-2+(-6)|/2 - |-2-(-6)|/2
|-8|/2 - |4|/2
8/2 - 4/2
4/2
2
Therefore, the answer is 2
|a-b| - |c+d|
|-5-4| - |1+(-3)|
|-9| - |-2|
9 - 2
7
Therefore the answer is 7
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