______1. 2 + 3 = 9 ______2. 4 > 5 + 7 ______3. 9 = 12 + 2 ______4. 2 − 3 ≥ 2 ______5. 61 ≠ 5 − 12

Question

______1. 2 + 3 = 9 ______2. 4 > 5 + 7 ______3. 9 = 12 + 2 ______4. 2 − 3 ≥ 2 ______5. 61 ≠ 5 − 12

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Trung Dũng 3 years 2021-08-29T12:24:06+00:00 1 Answers 4 views 0

Answers ( )

  1. yenoanh
    0
    2021-08-29T12:25:30+00:00
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    Answer:

    1. Not True

    2. Not True

    3. Not True

    4. Not True

    5. True

    Step-by-step explanation:

    As given,

    1.

    2 + 3 = 9

    ⇒ 5 = 9

    Not True

    2.

    4 > 5 + 7

    ⇒4 > 12

    Not True

    3.

    9 = 12 + 2

    ⇒9 = 14

    Not True

    4.

    2 – 3 ≥ 2

    -1 ≥ 2

    Not True

    5.

    61 ≠ 5 – 12

    ⇒61 ≠ -7

    True

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