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

Question

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

in progress 0
Vân Khánh 6 months 2021-09-03T09:54:07+00:00 1 Answers 3 views 0

Answers ( )

    0
    2021-09-03T09:55:35+00:00

    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

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )