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29 April, 06:37

Which equation is true?

-

A. (6 + 2) + 7 = 6 + (2 + 7)

B. (6 - 2) - 7 = 6 - (2 - 7)

C. (6 - 2) + 7 = 6 - (2 + 7)

D. (6 = 2) = 7 = 6 - 12 = 7)

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Answers (2)
  1. 29 April, 06:55
    0
    (6 + 2) + 7 = 6 + (2 + 7)

    Explanation:

    (6 + 2) + 7

    6 + 2 = 8

    8 + 7 = 15

    6 + (2 + 7)

    2 + 7 = 9

    9 + 6 = 15

    15 = 15

    You will be adding 6, 2 and 7 no matter what. The parenthesis do not make a difference. 6 + 2 + 7 is the same thing as 6 + 2 + 7. 15 = 15.
  2. 29 April, 09:44
    0
    A.

    Step-by-step explanation:

    A. 15 = 15 (true)

    B. - 3 = 11 (false)

    C. 11 = - 3 (false)
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