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What is the solution of log4(2x-6)=2

1 Answer

6 votes

Answer:
x=11

Explanation:

Remembert that, by definition:


log_b(x)=y
b^y=x

Then, you can rewrite
log_4(2x-6)=2 in exponential form:


4^2=2x-6

Now you can solve for the variable "x":

Add 6 to both sides of the equation:


4^2+6=2x-6+6


22=2x

And finally you must divide both sides of the equation by 2, then:


(22)/(2)=(2x)/(2)\\\\x=11

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