Question 339287
<pre>
{{{log(w, (z)) = -13}}}

Learn this rule:

the logarithm equation {{{log(B,(A))=C}}} 

is equivalent to 

the eponential equation {{{A=B^C}}}

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So {{{log(w, (z)) = -13}}}

is equivalent to

{{{z=w^(-13)}}}

Edwin</pre>