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Solve the logarithmic equation: 2 x − 2(x − 2) = 3
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Step-by-step solution
4 stepslet's solve this logarithmic equation.
Given the equation:
Apply the quotient rule of logarithms, , to the left side of the equation.
Convert the logarithmic equation into its equivalent exponential form.
The definition of a logarithm states that is equivalent to .
Applying this to our equation, where , , and :Simplify the left side and solve for .
Multiply both sides by :
Subtract from both sides:
Add 16 to both sides:
Divide by 7:
Check the validity of the solution.
The arguments of the original logarithms must be positive.
For , we need . Our solution satisfies this condition.
For , we need , which means .
Our solution , which is greater than 2.
Both conditions are satisfied, so the solution is valid.The value of is .
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