Multiple choice

What is the value of k if 2k + [k - 2 {2k - 4}] = 1?

    • 7

  2. 9

  3. 7
    • 9

  5. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

2 k + [k - 2 { 2 k - 4}] = 1 2 k + [ k - 4 k + 8 ] = 1 2 k + [ - 3 k + 8 ] = 1

  • k + 8 = 1
  • k = - 7 k = 7

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