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13 December, 19:36

Solve: |2x+3|-6=11

A) 7 or - 10

B) - 7 or - 10

C) - 7 or 10

D) 7 or 10

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Answers (2)
  1. 13 December, 19:40
    0
    Answer is A, as (2x+3) can either be + 17 or - 17, so solve for them.
  2. 13 December, 19:53
    0
    |2x+3| - 6 = 11

    |2x+3| = 11+6 = 17

    2x+3 = 17 or 2x+3 = - 17

    2x = 17-3, or 2x = - 17-3

    2x = 14 or 2x = - 20

    x = 7 or x = - 10

    7 or - 10
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