|x+3| â€“ |4-x| = |8+x|

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ygdrasil24: Senior | Next Rank: 100 Posts; Posts: 42; Joined: Tue Dec 06, 2011 8:06 am; Thanked: 3 times; Followed by:1 members

by ygdrasil24 » Sun Jun 16, 2013 4:50 am

|x+3| - |4-x| = |8+x| How many solutions will this equation have?

What is the fastest approach ? Can critical point theory be applied here ?

Source: Beat The GMAT — Problem Solving | Sun Jun 16, 2013 4:50 am

Atekihcan: Master | Next Rank: 500 Posts; Posts: 149; Joined: Wed May 01, 2013 10:37 pm; Thanked: 54 times; Followed by:9 members

by Atekihcan » Sun Jun 16, 2013 8:24 am

ygdrasil24: Senior | Next Rank: 100 Posts; Posts: 42; Joined: Tue Dec 06, 2011 8:06 am; Thanked: 3 times; Followed by:1 members

by ygdrasil24 » Sun Jun 16, 2013 10:02 am

Atekihcan wrote:https://www.beatthegmat.com/absolute-values-t257519.html

Thanx man.

Is there a 2 min solution of such problems ?

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