Question

if 9 power x-1 = 3 power 2x-1 - 486, then the value of x is

Answer 1

Hiiiii,
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$9^{x - 1} = 3^{2x - 1 - 486}$
$= 3^{2x -2 } = 3^{2x -487}$
then using exponent theory ,
2x- 3 = 2x - 487 
2x - 2x = -487 +2 
answer is null