Last visit was: 26 Dec 2024, 10:12 It is currently 26 Dec 2024, 10:12
Decision Tracker
My Rewards
New comers' posts
New posts
Unanswered

Close

GRE Prep Club Daily Prep

Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GRE score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Go to My Error Log Learn more
Close

Request Expert Reply

Confirm Cancel
PREVIOUS TOPIC
NEXT TOPIC

If a+ b = 0, then b – 2a =

Tags :
Find Similar Topics  About  Add a Tag

Show Tags
Hide Tags

User avatar
D
Carcass
Verbal Expert
Joined: 18 Apr 2015
Posts: 30508
Own Kudos [?]: 36867 [0]
Given Kudos: 26109
Send PM
If a+ b = 0, then b – 2a = [#permalink] New post   Updated on: 16 Jul 2021, 11:26
Expert Reply
00:00

Question Stats:

63% (00:50) correct 36% (00:40) wrong based on 11 sessions

Hide Show timer Statistics

If a + b = 0, then b – 2a =

A. 3a
B. 2a
C. 0
D. 2b
E. 3b


Kudos for the right answer and explanation
ShowHide Answer
Official Answer
E

Originally posted by Carcass on 02 Jan 2021, 02:39.
Last edited by BrushMyQuant on 16 Jul 2021, 11:26, edited 2 times in total.
Edited the question as |a| was redundant in the question
User avatar
D
rx10
Retired Moderator
Joined: 02 Dec 2020
Posts: 1831
Own Kudos [?]: 2149 [0]
Given Kudos: 140
GRE 1: Q168 V157

GRE 2: Q167 V161
Send PM
Re: If a+ b = 0, then b – 2a = [#permalink] New post   02 Jan 2021, 08:20
1
a+b = 0

a = -b

b-2a = b -2(-b) = b + 2b = 3b

Answer E
User avatar
G
BrushMyQuant
Moderator
Moderator
Joined: 02 Jan 2020
Status:GRE Quant Tutor
Posts: 1115
Own Kudos [?]: 974 [1]
Given Kudos: 9
Location: India
Concentration: General Management
Schools: XLRI Jamshedpur, India - Class of 2014
GMAT 1: 700 Q51 V31
GPA: 2.8
WE:Engineering (Computer Software)
Send PM
Re: If a+ b = 0, then b – 2a = [#permalink] New post   16 Jul 2021, 10:42
1
a + b = 0
=> a = -b
=> b-2a = b - 2*(-b) = b + 2b = 3b

So, answer will be E
Hope it helps!
Prep Club for GRE Bot
gmatclubot
Re: If a+ b = 0, then b – 2a = [#permalink]
16 Jul 2021, 10:42
Moderators:
adewale223
GRE Instructor
88 posts
bronaugust
GRE Forum Moderator
37 posts
BrushMyQuant
Moderator
1115 posts
VibhuAnurag
GRE Instructor
234 posts

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne

Main navigation

Partners

GRE Resources

www.ets.org/gre | About | Terms and Conditions and Privacy Policy | Prep Club for GRE Rules | Contact