Live GMAT classes with Target Test Prep start Nov 21 and Nov 22. First class free.

See classes
Target Test Prep · GMAT

Choose how you want to prepare

Learn live with an expert or move at your own pace. Every option includes the complete TTP study system.

Newsweek Readers’ Choice Awards 2026 winner: Target Test Prep, #1 Test Prep

Target Test Prep was voted #1 Best Test Prep in the 2026 Newsweek Readers’ Choice™ Awards.

★★★★★5.0563 reviews
GMATLiveTeachStarts Nov 22
Josh Braslow, Target Test Prep GMAT expert
LIVE ONLINE CLASSES

Get Ready for GMAT Test Day Faster with Live Online Classes

with Josh Braslow, 20+ years in test prep

Nov 22 · Josh Braslow
Sun · 9:30 AM to 12:30 PM ET
Included
40 hours of live online classes + 6 months of TTP OnDemand
  • Attend the first class for free
  • Every class is recorded, so you never fall behind
View classes & enroll
Limited seats availableTarget Test Prep
EALiveTeachOnDemandStart anytime
EXECUTIVE ASSESSMENT

Target Test Prep EA OnDemand

Self-paced EA prep. Study on your schedule.

EXECUTIVE ASSESSMENT

with

165+ EA score guarantee
$05-day trial no automatic billing
Schedule
Included
40 hours of live online classes plus six months of access to the complete TTP EA OnDemand course.
  • 165+ EA Score Guarantee
  • 4,100+ Quant, Verbal, and Integrated Reasoning practice questions
  • 400+ hours of in-depth video lessons
  • 3,000+ step-by-step video solutions
View EA class & enroll Start free 5-day trial
Limited cohort · enrollment openTrial includes full course accessTarget Test Prep
GMATOnDemandStart anytime
SELF-PACED MASTERCLASS

Target Test Prep GMAT OnDemand

Complete access from day one. Study on your schedule.

715+ score guarantee
$0to start then $127/mo
  • Personalized study plan and analytics
  • Thousands of lessons and practice questions
Start free 5-day trial
Read 563 reviewsTarget Test Prep

MGMAT geometry question

Expert replies
Post new topic Post Reply
Subscribe topic
Previous Topic Next Topic
Junior | Next Rank: 30 Posts
Posts: 22
Joined: Wed Apr 30, 2008 12:12 pm
Thanked: 5 times
by w0283767 » Sun Sep 21, 2008 3:58 pm
I am stuck on this problem from the MGMAT geometry book on page 62.

Any input would be greatly appreciated.
thanks in advance.
You do not have the required permissions to view the files attached to this post.
Top
Join the discussion
Source: — Problem Solving |
Senior | Next Rank: 100 Posts
Posts: 85
Joined: Wed Mar 26, 2008 9:49 pm
Location: NJ, USA
Thanked: 1 times

by csandeepreddy » Sun Sep 21, 2008 4:15 pm
Yes. You are right they multiplied the equation with -2.
Its a method to solve for x & y in simultaneous equations.

This link might help you understanding methods to solve such kind of equations.
https://www.themathpage.com/alg/simultan ... ations.htm
Top
Join the discussion
Junior | Next Rank: 30 Posts
Posts: 22
Joined: Wed Apr 30, 2008 12:12 pm
Thanked: 5 times

by w0283767 » Sun Sep 21, 2008 4:21 pm
thank you. I actually figured it out myself. I clearly have a lot of refreshing to do in the math. lol.

I forgot that you can manipulate an equation as long as you do the same thing to both sides. In this case they did -2 on both sides in order to make the x's cancel themselves out.
Top
Join the discussion