Answer:
To find the absolute you simplify the expression between the bars then turn the answer positive.
Example 1: |10-20|
First simplify -> |-10| (10-20=-10)
Turn any negative positive and remove bars -> 10 (-10 becomes + 10)
Example 2: |10+40|
First simplify -> |50| (10+40=50)
Turn any negative positive and remove bars -> 50 (+50 stays +50)
I hope this helps :0)
