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Mathematics 15 Online
OpenStudy (anonymous):

Solve |x + 5| < 9

OpenStudy (anonymous):

Lmfaooo, i got smart for like 2 mins then quit.

Parth (parthkohli):

=> -9 < x + 5 < 9

OpenStudy (anonymous):

can you show me the steps ?

Parth (parthkohli):

Okay, you need to understand the absolute value inequalities. So, you just replace the absolute value with 'distance from zero' and read it out loud. Try it, then I'll tell how I did it.

OpenStudy (anonymous):

i hella don't get it ..

Parth (parthkohli):

Alternatively, you can watch the video of khanacademy called Absolute Value Inequalities.

Parth (parthkohli):

Lemme send the link. MEDAL PLEASE?

OpenStudy (anonymous):

Ugh , Can you show me the steps on this problem and then i will (:

Parth (parthkohli):

http://www.youtube.com/watch?v=iI_2Piwn_og

Parth (parthkohli):

See this video, you will understand it COMPLETELY, I promise.

OpenStudy (anonymous):

its like 14 mins D;

Parth (parthkohli):

Okay lemme show the steps on a number line.

Parth (parthkohli):

|dw:1335618693378:dw| We know, x=5 is between -9 and 9, so we can say: -9 < x + 5 < 9 -14 < x < 4

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