Topic: Exponential and Logarithmic Equations

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Answers
$1: x=0$
$2: x=3$
$3: x=\frac{1}{5}$
$4: x=\frac{1}{2}$
$5: x=-4$
$6: x=-5,5$
$7: x=3$
$8: x=\frac{-7}{3}$
$9: x=\frac{3}{2}$
$10: x=4$
$11: x=\ln 6$
$12: x= \frac{\log 4}{\log 3}$
$13: x= 1000000$
$14: x=125$
$15: x=4$
$16: x=e$
$17: x=10$
$18: x=-5$
$19: x=19$
$20: x=6$