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28 September, 19:05

Find all real numbers X such that 18x-9>9 or 2x-4>-10

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Answers (2)
  1. 28 September, 20:46
    0
    So what we are going to do is the next thing:Consider 18x-9>9 1. add 9 to both sides 2. divide both sides by the coefficient of x (that is 18 in this case) Now Consider 2x-4>-10 1. Then add 4 to both sides 2. divide both sides by the coefficient of x (that is 2 in this case) The final solution would be x < 1 Hope this can fit what you are looking for
  2. 28 September, 22:05
    0
    What you must do for this case is to solve both inequalities

    We have then:

    18x-9> 9

    We clear x:

    18x> 9 + 9

    x> 18/18

    x> 1

    2x-4> - 10

    We clear x:

    2x> - 10 + 4

    x> - 6/2

    x> - 3

    Therefore we have to

    For 2x> - 10 + 4

    x belongs (-3, inf)

    For 18x> 9 + 9

    x belongs (1, inf)

    The solution that is met for both inequalities is:x belongs (1, inf)
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