If a = 7, what is the value of the expression 2(a + 8)?

Question

If a = 7, what is the value of the expression 2(a + 8)?

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Khải Quang 2 months 2021-08-06T05:07:31+00:00 2 Answers 1 views 0

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    0
    2021-08-06T05:09:06+00:00

    Answer:

    2(a + 8) \\ if \: a = 7 \\ 2 \times (7 + 8) \\ 2 \times 15 \\  = 30 \\

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    0
    2021-08-06T05:09:12+00:00

    Answer
    2 x (7+8)
    2×7=14
    2×8=16
    14+16=30
    Explanation

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