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doller Group Title

Solve for x: 10x + 5 > 5 A. x = 10 B. x > 0 C. x < -1 D. x > 20

  • one year ago
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  1. doller Group Title
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    can anyone help

    • one year ago
  2. icalibear Group Title
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    Yes.

    • one year ago
  3. icalibear Group Title
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    Basically what the question is asking is what is going to be bigger than 5 once you solve the equation, so can you eliminate any answers that are not bigger than 5?

    • one year ago
  4. doller Group Title
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    c?

    • one year ago
  5. icalibear Group Title
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    10(-1) + 5 = ?

    • one year ago
  6. icalibear Group Title
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    Can you answer that?

    • one year ago
  7. doller Group Title
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    14?

    • one year ago
  8. icalibear Group Title
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    So that's bigger than 5.

    • one year ago
  9. icalibear Group Title
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    You know now that that is a possible answer.

    • one year ago
  10. Hunus Group Title
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    It's asking for what values of x is the left side bigger than the right side?

    • one year ago
  11. icalibear Group Title
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    Basically. Try plugging in numbers and see which one works.

    • one year ago
  12. kelliegirl33 Group Title
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    10x + 5 > 5 (subtract 5 from both sides) 10x + 5 - 5 > 5 - 5 10x = 0 x = 0/10 = 0

    • one year ago
  13. icalibear Group Title
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    Does that work for the equation?

    • one year ago
  14. kelliegirl33 Group Title
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    It doesn't seem to fit the equation...but that is how to do an inequality. You solve an inequality kind of like an equation. Except there are some rules... one of which is you can subtract/add anything to both sides as long as they are the same number...doesn't matter if it is negative or positive. (which I did) If this is done it does not change the inequality sign.Also if you divide by a positive number the inequality sign does not change. I can't see anything that I did wrong, however, the inequality doesn't seem to make sense.... 10x + 5 > 5 10 (0) + 5 > 5 0 + 5 > 5 5 > 5 (doesn't make sense ???)

    • one year ago
  15. rachel1234 Group Title
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    It ends up with 10x > 0 so x > 0!

    • one year ago
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