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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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