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If log2(3x – 1) = 5, find x.

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Mathematics WAEC 2016

If log2(3x – 1) = 5, find x.

  • 2.00
  • 3.67
  • 8.67
  • 11 checkmark

The correct answer is: D

Explanation

Log2(3x - 1) = 5

Log2(3x - 1) = Log225

Log2(3x - 1) = Log232

3x - 1 = 32

3x = 32 + 1 = 33

x = \(\frac{33}{3}\)

= 11
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