hallo??

$5^{2x-1} = 12x\\ $

This equation could be only solved by graphs.

x approximately equals 0.018

The graph is here: https://www.desmos.com/calculator/ybvryov1fx

There are two solutions Max - take a closer look at your graph.

The two solutions are easier to spot if you look for the zeros of 5^(2x-1) - 12x = 0