QUESTION 6 (NOV.24TH)

This topic has expert replies
Source: — Problem Solving |

User avatar
Community Manager
Posts: 1049
Joined: Sun Apr 06, 2008 5:15 pm
Location: Pittsburgh, PA
Thanked: 113 times
Followed by:27 members
GMAT Score:710

by dmateer25 » Mon Nov 24, 2008 4:30 pm
5^x – 5^(x-3) = (124)(5^y)

5^x - (5^x/5^3) = 124(5^y)

5^x(1 - 1/125) = 124(5^y)

5^x(124)/125=124(5^y)

5^x/125 = 5^y

5^x/5^3 = 5^y

5^x-3 = 5^y

x-3 = y