3 < 2x + 1 < 9 How do I solve this?

Question

3 < 2x + 1 < 9
How do I solve this?

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Vân Khánh 3 years 2021-09-03T09:54:07+00:00 1 Answers 7 views 0

Answers ( )

  1. thugiang
    0
    2021-09-03T09:55:35+00:00
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    Answer:

    (1,4) or 1 < x < 4

    Step-by-step explanation:

    3 = less than 2x + 1 and 2x + 1 is less than 9

    we can split the two parts of the equation

    3< 2x + 1 and 2x + 1 < 9

    for 3< 2x + 1 x has to be greater than 1

    for 2x+ 1 < 9 x has to be less than 4 so the answer is (1,4) or 1 < x < 4

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