BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem
TTP OnDemand GMAT Video Course
Featured Course

Target Test Prep GMAT OnDemand

Scott Woodbury-Stewart’s private virtual classroom — 400 hours of master-class video lessons for the GMAT Focus Edition.

  • 715+ score guarantee — highest in the industry (99th percentile)
  • 52 chapters · 1,500+ lessons · 4,000+ practice questions
  • 400 hours of video · 1,500+ instructor-led HD smartboard lessons
  • 300,000+ students accepted to Harvard, Stanford, Wharton, Booth & Sloan & more
  • 24/7 live support + weekly Zoom office hours with GMAT instructors
  • TTP AI Assist — 24/7 AI-powered virtual tutor for instant help
  • 1,200+ flashcards + AI-powered study assistant & daily calendar
  • OnDemand, LiveTeach & GMAT Bootcamp formats available
  • Also: GRE, SAT Math & Executive Assessment courses
  • MBA Admissions Consulting now available
  • 🏆 2025 EdTech Breakthrough Award: Test Prep Solution Provider of the Year
  • 200,000+ students served
  • 5-day free trial — $0 to start, no auto-billing, cancel anytime
★★★★★ 5.0 (559 reviews)
130-pt guarantee
$0 to start then $127/mo
Start Free 5-Day Trial Read 559 Reviews →

If \(\dfrac2{x+1}=\dfrac1{x-1},\) for \(x \ne 1\) and \(x \ne -1,\) then \(x =\)

Expert replies
Post new topic Post Reply
Previous Topic Next Topic
Legendary Member
Posts: 1622
Joined: Thu Mar 01, 2018 7:22 amFollowed by: 2 members
by Gmat_mission » Thu Sep 10, 2020 12:39 am

Timer

00:00

Answers

A

B

C

D

E

Stats

Difficulty—

If \(\dfrac2{x+1}=\dfrac1{x-1},\) for \(x \ne 1\) and \(x \ne -1,\) then \(x =\)

A. -3
B. -2
C. 0
D. 2
E. 3

Answer: E

Source: Princeton Review
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Source: — Problem Solving |
Junior | Next Rank: 30 Posts
Posts: 15
Joined: Sat Sep 12, 2020 8:07 pm

Re: If \(\dfrac2{x+1}=\dfrac1{x-1},\) for \(x \ne 1\) and \(x \ne -1,\) then \(x =\)

by Nirav Umaretiya » Sat Sep 12, 2020 9:19 pm
It's a simple arithmetic problem

\(\dfrac2{x+1}=\dfrac1{x-1}\)

So, 2(x-1) = 1(x+1)

So, 2x - 2 = x + 1

So, x = 3

Correct ans is E
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY

GMAT/MBA Expert

User avatar
GMAT Instructor
Posts: 8155
Joined: Sat Apr 25, 2015 10:56 amFollowed by: 29 members
Location: Los Angeles, CA
Thanked: 43 times

Re: If \(\dfrac2{x+1}=\dfrac1{x-1},\) for \(x \ne 1\) and \(x \ne -1,\) then \(x =\)

by Scott@TargetTestPrep » Mon Sep 14, 2020 4:09 am
Gmat_mission wrote: ↑
Thu Sep 10, 2020 12:39 am
 If \(\dfrac2{x+1}=\dfrac1{x-1},\) for \(x \ne 1\) and \(x \ne -1,\) then \(x =\)

A. -3
B. -2
C. 0
D. 2
E. 3

Answer: E

Solution:

Cross-multiplying, we have:

2x - 2 = x + 1

x = 3

Answer: E

Scott Woodbury-Stewart
Founder and CEO
[email protected]

Image

See why Target Test Prep is rated 5 out of 5 stars on BEAT the GMAT. Read our reviews

ImageImage
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Post Reply
• Page 1 of 1