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If \(y=2^{x+1},\) what is the value of \(y - x?\)

Vincen: Legendary Member; Posts: 2898; Joined: Thu Sep 07, 2017 2:49 pm; Thanked: 6 times; Followed by:5 members

by Vincen » Sat Jan 30, 2021 10:34 pm

00:00

If \(y=2^{x+1},\) what is the value of \(y - x?\)

(1) \(2^{2x+2}=64\)

(2) \(y=2^{2x-1}\)

Answer: D

Source: Official Guide

Source: Beat The GMAT — Data Sufficiency | Sat Jan 30, 2021 10:34 pm

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