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Solve the logarithmic equation: \2(3x−1) = 5

Mathematics

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Answer

11\text{11}

Step-by-step solution

4 steps
  1. Convert the logarithmic equation to an exponential equation.

    The definition of a logarithm states that if log⁡b(a)=c\log_b(a) = c, then bc=ab^c = a.
    Given the equation log⁡2(3x−1)=5\log_2(3x-1) = 5, we have b=2b=2, a=3x−1a=3x-1, and c=5c=5.

    25=3x−12^5 = 3x-1
  2. Calculate the value of the exponential term.

    32=3x−132 = 3x-1
  3. Solve the linear equation for xx.

    Add 1 to both sides of the equation:

    32+1=3x32 + 1 = 3x 33=3x33 = 3x
  4. Divide by 3 to find xx.

    333=x\frac{33}{3} = x x=11x = 11

    The value of xx is 11\boxed{\text{11}}.

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