anonymous
  • anonymous
NEED HELP! Solve for n: 21k -3n + 9p > 3p + 12 A. n > 2p + 7k - 4 B. n < 2p + 7k - 4 C. n > -4p - 7k + 4 D. n < -4p - 7k + 4
Mathematics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
dan815
  • dan815
solve equations with inequality instead of equal sign is very similiar, only have to worry about sign changing operations
anonymous
  • anonymous
i'm lost sorry
dan815
  • dan815
do you know how to solve this 21k -3n + 9p = 3p + 12

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

dan815
  • dan815
if there is an equal sign, how do you solve for n?
anonymous
  • anonymous
first do i add something?
dan815
  • dan815
|dw:1434743334964:dw|
dan815
  • dan815
only difference is if u multiply both of them by -1 , then what was greater will be more negative
dan815
  • dan815
|dw:1434743494515:dw|
dan815
  • dan815
|dw:1434743610549:dw|
dan815
  • dan815
|dw:1434743716649:dw|
dan815
  • dan815
|dw:1434743745158:dw|
dan815
  • dan815
see how -1 works with the number line now?
anonymous
  • anonymous
yes but now how do i start solving?
dan815
  • dan815
the same way you solve normal equations, only remember how multiplication by negative number changes it
dan815
  • dan815
21k -3n + 9p > 3p + 12 isolate for n
dan815
  • dan815
solve for n like you do a normal equation, keep track of the number of times you multiply by a negative number
dan815
  • dan815
if the number of times you multiply by a negative number is odd, then you flip sign else u keep the sign oriented same way
anonymous
  • anonymous
can i put 3p and 12 together?
dan815
  • dan815
what do u mean?
anonymous
  • anonymous
like terms
dan815
  • dan815
ya, u have to have n all by itself
dan815
  • dan815
21k -3n + 9p > 3p + 12 okay so we saw how adding and subtracting will keep the inequality, as everything just gets shifted left or right
dan815
  • dan815
|dw:1434744122685:dw|
dan815
  • dan815
|dw:1434744155894:dw|
dan815
  • dan815
21k -3n + 9p > 3p + 12 so subtract 21k from both side and 9p
dan815
  • dan815
21k -3n + 9p > 3p + 12 -3n > 3p+12 -21k -9p
dan815
  • dan815
what do you think we should to now?
dan815
  • dan815
u can go the other way too u can add 3n to both sides as well as subtract 3p and 12 from both sides 21k -3n + 9p > 3p + 12 21k + 9p -3p - 12 > 3n notice in this case it automatically takes care of the sign flip
anonymous
  • anonymous
can you help me with another one? like walk through w me
dan815
  • dan815
yep, did u finish this one though, what did u get?

Looking for something else?

Not the answer you are looking for? Search for more explanations.