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11 May, 23:56

Solve the equation 2 (a - 5) - 5 = 3.

A. a = 9

B. a = 12

C. a = - 9

D. a = - 12

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Answers (2)
  1. 12 May, 01:35
    0
    Distribute the 2 into the parenthesis.

    2a - 10 - 5 = 3

    Simplify

    2a - 15 = 3

    Add 15 to both sides

    2a - 15 + 15 = 3 + 15

    2a = 18

    Divide by 2 on both sides

    2a/2 = 18/2

    a = 9

    So, A is your answer.
  2. 12 May, 03:01
    0
    2 (a-5) - 5 = 3

    2a - 10 - 5 = 3

    2a - 15 = 3

    2a = 18

    a = 9

    Answer is A.
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