pls compare if it is possible

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Udaysjha: Newbie | Next Rank: 10 Posts; Posts: 2; Joined: Tue Aug 23, 2011 12:04 am

by Udaysjha » Mon Sep 19, 2011 7:51 am

If y=5x, then prove 5^x+1=5y

Source: Beat The GMAT — Problem Solving | Mon Sep 19, 2011 7:51 am

cans: Legendary Member; Posts: 1309; Joined: Mon Apr 04, 2011 5:34 am; Location: India; Thanked: 310 times; Followed by:123 members; GMAT Score:750

by cans » Mon Sep 19, 2011 7:56 am

are you sure you are not missing any brackets..? or y=5^x???
assuming y=5^x, 5y = 5* 5^x = 5^(x+1)

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