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29 November, 05:39

Jonathan found that the correct equation - 2|8-x|-6=-12 had two possible solutions: x=5 and x=-11. Which explains whether his solutions are correct?

A) He is correct because both solutions satisfy the equation.

B) He is not correct because he made a sign error.

C) He is not correct because there are no solutions.

D) He is not correct because there is only one solution: x=5

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Answers (2)
  1. 29 November, 06:41
    0
    D

    Step-by-step explanation:

    Check the solutions by substituting the values of x into the left side of the equation and if equal to the right side then they are a solution.

    x = 5

    - 2 | 8 - 5 | - 6 = - 2 | 3 | - 6 = ( - 2 * 3) - 6 = - 6 - 6 = - 12 ← correct

    x = - 11

    - 2 | 8 + 11 | - 6 = - 2 | 19 | - 6 = ( - 2 * 19) - 6 = - 38 - 6 = - 44 ≠ - 12

    Thus x = 5 is a solution but x = - 11 is not → D

    The solutions to the equation are in fact x = 5 and x = 11
  2. 29 November, 07:10
    0
    Step-by-step explanation:

    if you want to find the solutions here is a method:

    -2|8-x|-6=-12

    divid by - 2:

    |8-x|+3=6

    |8-x| = 3

    8-x = 3 or 8-x=-3

    x = 5 or x=11
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