Find all School-related info fast with the new School-Specific MBA Forum

 It is currently 05 May 2015, 02:20

### 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

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# PS - x in terms of y

Author Message
TAGS:
Senior Manager
Joined: 13 Sep 2006
Posts: 282
Location: New York
Followers: 1

Kudos [?]: 8 [0], given: 0

PS - x in terms of y [#permalink]  03 Oct 2006, 20:22
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
Could someone please advise how to do this algebraically (i.e not picking numbers).

Please express x in terms of y for the following and x>-2:

(x^2-16)/(x^2+6x+8)

Thanks
Senior Manager
Joined: 13 Sep 2006
Posts: 282
Location: New York
Followers: 1

Kudos [?]: 8 [0], given: 0

Sorry guys you are right ...please set the equation to equal y

(x^2-16)/(x^2+6x+8) = y
Current Student
Joined: 29 Jan 2005
Posts: 5244
Followers: 23

Kudos [?]: 179 [0], given: 0

Matrix02 wrote:
Sorry guys you are right ...please set the equation to equal y

(x^2-16)/(x^2+6x+8) = y

FOIL the numerator and denominator.

(x+4)(x-4) / (x+4)(x+2)= y

Cancel out (x+4)

(x-4) / (x+2) = y ---> x-4= yx+2y ---> x-yx=2y+4 ---> x(1-y)=2y+4

x=(2y+4)/(1-y)
Similar topics Replies Last post
Similar
Topics:
What is y in terms of x ? 4 09 Jun 2009, 19:35
Maths: Y in terms of X ? 5 08 Feb 2008, 02:32
What is y in terms of x ? 5 12 Nov 2007, 12:14
Help with x in terms of y?? 2 01 Mar 2007, 15:44
PS r in terms of x and y 5 10 Jun 2005, 01:25
Display posts from previous: Sort by