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Homework Help: Algebra Question

  1. Oct 25, 2006 #1
    I was asked to solve for x,
    i tried cross multiplying x by 1.5 and 4.8 by 1.5, the moving my 2.18x over to my left side.


    Did i do this correctly
  2. jcsd
  3. Oct 25, 2006 #2
    no you did not do it correctly

    [tex] \frac{x-4.8}{1.5} = 2.18x [/tex]

    [tex] x-4.8 = ? [/tex]

    [tex] x = ? [/tex]
  4. Oct 25, 2006 #3


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    Staff Emeritus
    Science Advisor
    Gold Member

    No. (x-4.8)/1.5 does NOT equal 1.5x -7.2

    What you would do is multiply both sides by 1.5:

  5. Oct 25, 2006 #4
    what software do you use?

    on a slight tangent, what software do you use to type all these mathematical notations. I'm putting together a math portfolio and I'm using word which is not very accurate in terms of mathematical notation........thank you. plz reply asap!
  6. Oct 25, 2006 #5
    its called LaTex. you can type it in the forums using [tex ] [/tex ] (with no spaces). You can also download MikTeX if you have Windows to get LaTex.
  7. Oct 25, 2006 #6
    oh ok...and can I use latex as an application, as in I can print the doc once I'm done...it is not html?
  8. Oct 25, 2006 #7
    no, its not html. you can print the document once
  9. Oct 25, 2006 #8
    oh all right thanks for the fast reply.
  10. Oct 26, 2006 #9
    thanks i see what i didnt do
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