Solved

Inequality

Posted on 2016-08-30
4
111 Views
Last Modified: 2016-09-06
In this example second last step is subtracting 5x and adding 3 on both sides. My question is how would i know the number it could be 2 million or 10 thousand. How would I know these 2 numbers if i am doing a different question of same type.

Thanks.
screenshot2.jpg
0
Comment
Question by:mustish1
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
4 Comments
 
LVL 74

Accepted Solution

by:
sdstuber earned 250 total points
ID: 41776457
you don't need to know.  because it doesn't matter.
that's the whole point of the exercise.  You perform operations to try to isolate the variable.
Knowing a value before hand isn't necessary.  You simply apply arithmetic rules until the varible is alone.

If for example, x was 2 million, the math still works out.  If x was ten thousand, the math still works out.


the only time it would matter is if you divided by x, then, becaues x could be 0, that wouldn't be a valid operation.
but, you can always subtract or multiply x.
0
 
LVL 43

Assisted Solution

by:Saqib Husain, Syed
Saqib Husain, Syed earned 250 total points
ID: 41776466
To get the form

nx < C

you have to get rid of the constant from the left side and the x from the right side. In the given case you add 3 to get rid of the constant from the left side and subtract 5x from the right side. These operations have to be done on both sides.
0
 

Author Closing Comment

by:mustish1
ID: 41776503
Thank You.
0
 
LVL 32

Expert Comment

by:awking00
ID: 41786537
Actually, the key is to isolate the variables on one side of the equation and the known values on the other and it doesn't matter which side is which. You could just as easily have subtracted 5 and added 3x from both sides ending up with -5 -3 < 5x - 3x or  -8 < 2x which still translates to -4 < x which is the same as x > -4.
0

Featured Post

[Live Webinar] The Cloud Skills Gap

As Cloud technologies come of age, business leaders grapple with the impact it has on their team's skills and the gap associated with the use of a cloud platform.

Join experts from 451 Research and Concerto Cloud Services on July 27th where we will examine fact and fiction.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This story has been written with permission from the scammed victim, a valued client of mine – identity protected by request.
This article is written by John Gates, CISSP. Gates, the SNUG President-Elect, currently holds the position of Manager of Information Systems at Lake Park High School in Roselle, Illinois.
Saved searches can save you time by quickly referencing commonly searched terms on any topic. Whether you are looking for questions you can answer or hoping to learn about a specific issue, a saved search can help you get the most out of your time o…
I've attached the XLSM Excel spreadsheet I used in the video and also text files containing the macros used below. https://filedb.experts-exchange.com/incoming/2017/03_w12/1151775/Permutations.txt https://filedb.experts-exchange.com/incoming/201…
Suggested Courses

626 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question