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  1. freckles
    • one year ago
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    Have you solved -7x-11<-109?

  2. anonymous
    • one year ago
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    no i need help.

  3. freckles
    • one year ago
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    your objective is to isolate x. Try first isolating the -7x by adding 11 on both sides.

  4. freckles
    • one year ago
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    what do you get after doing that?

  5. anonymous
    • one year ago
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    0?

  6. anonymous
    • one year ago
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    xD i dont know ho to this this is a pr test

  7. anonymous
    • one year ago
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    pre*

  8. freckles
    • one year ago
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    isn't a pretest testing to see where your knowledge is already at? also what happen to your inequality when you added 11 on both sides? It is like you dropped the whole thing or something... you had -7x-11<-109 and somehow you made all of it disappear? Adding 11 on both sides looks like this: -7x-11+11<-109+11 we did this to get -7x by itself this works because -11+11 is 0 so you have -7x+0<-109+11 or since adding anything to zero is still that anything you have -7x<-109+11

  9. anonymous
    • one year ago
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    yes thats a pretest but i dont know this stuff

  10. anonymous
    • one year ago
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    i knew it was 0 so it stays the same?

  11. freckles
    • one year ago
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    I say try your best on the pretest then. I'm guessing since it is a pretest it is to see where the class is so the teacher knows where to begin, right?

  12. freckles
    • one year ago
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    If you don't know this, wouldn't you want your teacher to teach it?

  13. freckles
    • one year ago
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    yes -11+11 is zero but it doesn't make the inequality disappear you still have to add 11 to the other side as I did above

  14. freckles
    • one year ago
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    can you try simplifying the right hand side of the inequality

  15. anonymous
    • one year ago
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    can you layout the problem?

  16. freckles
    • one year ago
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    so you can't do the -109+11?

  17. anonymous
    • one year ago
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    i honestly dont know this stuff im trying my best to learn

  18. freckles
    • one year ago
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    -109+11 is the same as -(109-11) do you know how to take away 11 from 109?

  19. anonymous
    • one year ago
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    yes

  20. anonymous
    • one year ago
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    98

  21. freckles
    • one year ago
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    yes so -109+11 is -98

  22. anonymous
    • one year ago
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    you there bud?

  23. freckles
    • one year ago
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    me?

  24. anonymous
    • one year ago
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    sorry i didnt see you typing

  25. freckles
    • one year ago
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    \[-7x<-98\] I will leave the rest to you because this is a test. But I will give a 2 hints: To undo the multiplication think division. Also multiplying or dividing both sides by a negative number of an inequality will change the direction of the inequality.

  26. anonymous
    • one year ago
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    its A

  27. freckles
    • one year ago
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    yes you divide both sides by -7 but -7 is negative so you have > instead of < so we have x>-98/-7=14 x>14 which means you want everything bigger than 14

  28. anonymous
    • one year ago
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    ik it

  29. anonymous
    • one year ago
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    so i got it right it was A?

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