Question

Log3(x-1)=2
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Answer 1

$a.a \\ \\ log_{3}(x - 1) = 2 \\ \\ (x - 1) = 3 {}^{2} \\ becoz \: \: \: log_{a}(b) = y \\ b = a {}^{y} \\ \\ \\ (x - 1) = 9 \\ \\ x = 10$