SOLUTION: abs( 9-x ) = 4

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Question 719339: abs( 9-x ) = 4
Answer by tommyt3rd(5050) About Me  (Show Source):
You can put this solution on YOUR website!
%0D%0Aabs%28+9-x+%29+=+4%0D%0A

means
9-x=-4 or 9-x=4

so

x=9+4=13

or
x=9-4=5

:)