Problem 5, page 43, Number Properties book

[Gregory Cole]

When is |4-x| equal to 4-x?

I still don't understand the answer, which is x is less than or equal to 4, and the explanation. Specifically how do you go from |4-x| to -(x-4)=4-x. And then how do you derive the answer from that?

Help!

Thanks!!!!

[george.kourdin]

when-is-x-4-equal-to-4-x-mgmat-properties-page-43-t10686.html

comes with a bonus overview of undergrad and HS level mathematics curriculum

[Gregory Cole]

Thanks again George. Interesting dialogue on that link though.

[RonPurewal]

hi -- this is not the correct folder for this problem; the manhattangmat strategy guides have a folder of their own. if you still need assistance with this question, please post a new thread in that folder.
thanks.