Question

The question is to solve: 72 = logx

Answer 1

$\bf 72=log(x)\iff 72=log_{10}(x)\\\\ -----------------------------\\\\ \textit{cancellation rules}\\\\ log_{{ a}}{{ a}}^x\implies x\qquad \qquad {{ a}}^{log_{{ a}}x}=x\impliedby \textit{let's use this one}\\\\ -----------------------------\\\\ 10^{72}=10^{log_{10}(x)}\implies 10^{72}=x$

Answer 2

Answer: $x = 10^{72}$
Explanation: Logarithms are usually written in base of 10, unless otherwise specified.

So, we can rewrite the logarithm as:
$72 = log_{10} x$

Rewriting it in exponent form, we get:
$x = 10^{72}$