Question:

Algebra help please?

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4x+49<9-x

Algebra is not my subject and everytime i do these kind of problems it gives me a negative

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  1. ok so first you have

    4x+49&lt;9-x

    add x to both sides

    5x + 49&lt; 9

    then subtract 49 from both

    5x&lt; -40

    then divide by 5

    x&lt;-8

    :]

    dont forget that if you divide by a - you have to switch the sign


  2. x=negative 8

  3. I&#039;m not quite sure if this is correct because I just calculated it in my head but I think it&#039;s x&lt;-8

    4x+49&lt;9-x

    4x+x&lt;9-49

    5x&lt;-40/5

    x&lt;-8

  4. This is how it is done step by step

    4x+49-49&lt;9-x-49(subtract 49 on both sides)

    4x&lt;-x-40

    4x+x&lt;-x-40+x(add x on both sides)

    5x&lt;-40

    (5x/5)&lt;((-40)/5)

    x&lt;(-8)

    Check the answer: -

    4(-8)+49=17

    9-(-8)=17

    so 4x+49&lt;9-x


  5. Move x&#039;s and numbers to different sides: 5x &lt; -40

    Simplify: x &lt; -8.

    By the way, x can be negative. Just can&#039;t say something like -5 &gt; 8.

  6. *add x to each side*

    4x+x+49&lt;9

           =

    5x+49&lt;9

    *subtract 49 from each side*

    5x = -40

    *divide each side by 5*

    x = -8

    It&#039;s supposed to be a negative, you didn&#039;t do anything wrong.

  7. maybe this will help hotmath.com

  8. THere is nothing wrong with getting a negative.  I got x&lt;-8, so it can be -9,-10,etc.

  9. 4x + 49 &lt;9-x

         - 49   - 49

    4x&lt;-40-x

    +x     +x

    5x&lt;-40

    x&lt;-8

    * i totally understand your problem. i took algebra two years ago. it was sooo hard for me. but compared to alg. 2 it&#039;s sooo easy :)

  10. the answer is x= -8

  11. 4x+49&lt;9-x-----&gt; 5x+49&lt;9 ----&gt; 5x&lt;-40 -----&gt; x&lt;-8
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