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 Name _____________________________ Date ___________________
Logarithms
(Answer ID # 0730339)
Solve for the unknown.

1.
 9x - 5 = 81x - 7

2.
46x - 9 =
 1 64

3.
23 + x -
 1 4
= 0

4.
2x + 1 =
 1 128

5.
 2x + 3 = 256

6.
 22x - 8 = 64

7.
 3x - 7 = 243

8.
 43x + 35 = 1,024

9.
 81 + x = 512

10.
 243x - 3 = 9x

11.
 816 + 4x = 4,096

12.
 34x - 2 = 729

13.
73x - 5 =
 1 49

14.
 3x - 4 = 6,561

15.
3x - 2 =
 1 243

16.
8x - 6 -
 1 64
= 0

17.
36x =
 1 729

18.
7x - 6 =
 1 2401

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