Question

3^х-1 меньше или равно 29

Answer 1

$3^{x-1} \leq 29 \\ \frac{ 3^{x} }{3} \leq 29 \\ 3^{x} \leq 87$

$log_{3}(87)$ ≈ 4.065

$3^{x} \leq 3^{4.065} \\ x \leq 4.065$