Question

3raised to the power x-1 = 1/27

Answer 1

$3 {}^{x - 1} = \frac{1}{27}$

$3 {}^{x - 1} = 3 {}^{ - 3}$

$comparing \: \: power \: \: of \: \: same \: \: base$

$x - 1 = - 3$

$x = - 3 + 1$

$x = - 2$

Answer 2

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