(1/3)⁽²⁰⁻ˣ⁾ = 9,
(1/3)⁽²⁰⁻ˣ⁾ = 3²,
(1/3)⁽²⁰⁻ˣ⁾ = (1/3)⁻²,
20 - х = -2,
х = 20 + 2,
х = 22
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Answers & Comments
(1/3)⁽²⁰⁻ˣ⁾ = 9,
(1/3)⁽²⁰⁻ˣ⁾ = 3²,
(1/3)⁽²⁰⁻ˣ⁾ = (1/3)⁻²,
20 - х = -2,
х = 20 + 2,
х = 22