How do you solve $13^(3x)-1=91$ ?

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Answer 1 · 2018-08-08T06:02:42

The solution is $=0.59$

The equation is

$13^(3x)-1=91$

$=>$ , $13^(3x)=91+1=92$

Taking logs on both sides

$ln(13^(3x))=ln(92)$

$3xln(13)=ln(92)$

$x=(ln92)/(3*ln13)=0.59$

How do you solve 13^(3x)-1=9113^(3x)-1=91?