 It is currently 18 Jan 2020, 08:41 ### GMAT 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

every week, we’ll send you an estimated GMAT 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. # If 4(r – s) = –2, then what is r, in terms of s ?  Question banks Downloads My Bookmarks Reviews Important topics
Author Message
TAGS:
Founder  Joined: 18 Apr 2015
Posts: 9336
Followers: 193

Kudos [?]: 2268 , given: 8822

If 4(r – s) = –2, then what is r, in terms of s ? [#permalink]
Expert's post 00:00

Question Stats: 94% (00:39) correct 5% (00:00) wrong based on 56 sessions

If $$4(r – s) = –2$$, then what is r, in terms of s ?

A) $$-\frac{8}{2}$$

B) $$s - \frac{1}{2}$$

C) $$s - \frac{3}{2}$$

D) $$s + 2$$

E) $$2s$$
[Reveal] Spoiler: OA

_________________

Need Practice? 20 Free GRE Quant Tests available for free with 20 Kudos
GRE Prep Club Members of the Month: Each member of the month will get three months free access of GRE Prep Club tests. GRE Instructor Joined: 10 Apr 2015
Posts: 2672
Followers: 101

Kudos [?]: 2954  , given: 45

Re: If 4(r – s) = –2, then what is r, in terms of s ? [#permalink]
1
KUDOS
Expert's post
Carcass wrote:

If 4(r – s) = –2, then what is r, in terms of s ?

A) $$\frac{-8}{2}$$

B) $$s - \frac{1}{2}$$

C) $$s - \frac{3}{2}$$

D) $$s + 2$$

E) $$2s$$

Given: 4(r – s) = –2 [solve for r]
Expand: 4r - 4s = -2
Add 4s to both sides: 4r = -2 + 4s
Rewrite right side: 4r = 4s - 2
Divide both sides by 4 to get: r = (4s - 2)/4
Check answer choices....not there. Looks like they want us to simplify.

We can use a nice rule that says (a - b)/c = a/c - b/c

So, (4s - 2)/4 = 4s/4 - 2/4
= s - 1/2

[Reveal] Spoiler:
B

Cheers,
Brent
_________________

Brent Hanneson – Creator of greenlighttestprep.com Intern Joined: 09 Aug 2019
Posts: 10
Followers: 0

Kudos [?]: 7  , given: 0

Re: If 4(r – s) = –2, then what is r, in terms of s ? [#permalink]
1
KUDOS
4r - 4s = -2
r = (4s-2)/4
r= = s - (2/4)
r= = s - (1/2) Re: If 4(r – s) = –2, then what is r, in terms of s ?   [#permalink] 04 Sep 2019, 22:29
Display posts from previous: Sort by

# If 4(r – s) = –2, then what is r, in terms of s ?  Question banks Downloads My Bookmarks Reviews Important topics Powered by phpBB © phpBB Group Kindly note that the GRE® test is a registered trademark of the Educational Testing Service®, and this site has neither been reviewed nor endorsed by ETS®.