To solve the logarithmic equation logx(5) = log6x(12), we will start by rewriting the equation using the change of base formula. The change of base formula states that loga(b) = logc(b) / logc(a) for any base c.
First, let’s express both logarithms in the same base; we can use the natural logarithm (ln) for simplicity:
logx(5) = ln(5) / ln(x)
log6x(12) = ln(12) / ln(6x)
Now, substituting these into our equation gives us:
ln(5) / ln(x) = ln(12) / ln(6x)
Next, we can cross-multiply:
ln(5) * ln(6x) = ln(12) * ln(x)
Now, we can expand ln(6x):
ln(6) + ln(x)
Substituting this back into the equation gives:
ln(5) * (ln(6) + ln(x)) = ln(12) * ln(x)
This simplifies to:
ln(5) * ln(6) + ln(5) * ln(x) = ln(12) * ln(x)
Rearranging the terms provides us with:
ln(5) * ln(6) = ln(x) * (ln(12) – ln(5))
From here, we can solve for ln(x):
ln(x) = ln(5) * ln(6) / (ln(12) – ln(5))
Finally, taking the exponential of both sides gives us:
x = e^(ln(5) * ln(6) / (ln(12) – ln(5)))
This is the solution to the logarithmic equation. Therefore, the true solution is given by this expression for x.