### Home > PCT > Chapter Ch9 > Lesson 9.2.1 > Problem 9-68

9-68.

3* ^{x}* = 81

5* ^{x}* = 5

^{−1}

log3* ^{x}* = log7

(3^{2})^{2}* ^{x}* = (3

^{3})

^{x}^{−2}

2^{−1} = log_{9}(log_{3}x)

3^{3} = *x*

*x* − 3 = 0

Solve for *x*.

ln*x* − 2 = 0

Solve for *x*.