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New Member - Need Help Using Site

Posted 10 years ago

i just joined tonight. I am taking College Algebra. I need some answers. Can I not just plug the question into the search bar and it spit out the answer? Surely, I can.

An example question is 2 times the absolute value of 2x-7 plus 6 is greater than 16. Now how do I do that when I can't even find the absolute value or greater or lesser than symbols are the keyboard they offer?

I am certain I am doing this all wrong. Please help!

POSTED BY: Lacey Perkins
5 Replies
Posted 10 years ago

I know what about to ask is kinda off this topic, but please i do need urgent assistance. Am trying to record sound with my mathimatica but it keeps giving me an error response. Please what can i do? i use the student version. please do respond. Thanks.

POSTED BY: benrus200

(fyi, the 3 December post was duplicated in http://community.wolfram.com/groups/-/m/t/401590 .)

POSTED BY: Bruce Miller

Your question sounded like you are confusing http://community.wolfram.com and http://www.wolframalpha.com/

The former is for asking questions about Wolfram products and services. The latter is for doing math.

POSTED BY: Bruce Miller
In[36]:= Reduce[2 Abs[2 x - 7] + 6 > 16, x, Reals]
Out[36]= x < 1 || x > 6

Please learn the syntax - it's worth it. You get an answer here because you used English syntax. You get (mostly) an answer from Mathematica if you use it's syntax correctly. Trust yourself, do it by hand first, than check the result with Mathematica.

POSTED BY: Udo Krause

Not sure from your question exactly what you are asking. My guess is that if you use something like

(2 | 2 x -7 |) + 6 > 16

you will get a useful answer. If this is not exactly what you want, you should be able to see how to edit it. What keyboard are you using? All keyboards I know of have < | or > on them.

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