How to solve equations with two logarithmic terms?

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Once again I return with questions about logarithms. This time I am having trouble with solving equations of the following form:

$a\cdot \log(t)^{Q} - b\cdot \log(t)^{Z} = R $

I cannot figure out how to solve this equation for $t$. What I do know is the following: taking the exponential on both sides results in

$\exp(a\cdot \log(t)^{Q}) = \exp(R+ b\cdot \log(t)^{Z}) $ $\iff$ $\exp(a\cdot \log(t)^{Q}) = e^{R}\cdot e^{ b\cdot \log(t)^{Z}}.$

Thanks in advance.

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The "most" you can do is to define $x = \log(t)^Q$, then your equation is

$x = \frac{b}{a} x^{\frac{Z}{Q}} + \frac{R}{a}$

That's it, you want the solution to

$x = \alpha x^{\beta} + \gamma$

Sadly, the solution to this equation cannot be written in term of usual functions.

But you can calculate its approximate value for specific values of $\alpha, \beta, \gamma$