Question

Помогите решить! Задание ЕГЭ
(1/3)^1-x=27

Answer 1

${( frac{1}{3} )}^{1 - x} = 27 \ {3}^{ - 1 + x} = {3}^{3} \ - 1 + x = 3 \ x = 3 + 1 \ x = 4$