SOLUTION:

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Question 150413:
Answer by mgmoeab(37) About Me  (Show Source):
You can put this solution on YOUR website!
Just go by the definition:
|x| = x, x>=o
|x| = -x, x Solution:
|x-7|>=2
a) if x>=o
then,
x-7>=2
x>=9
b) if x then,
x-7<=-2
x<=5
]-∞,5]U[9,+∞[ VALUES OF X.