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# if 2^x - 2^x-2 = 3(2^13), what is thevalue of x? a. 9 b

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Manager
Joined: 05 Jul 2006
Posts: 195

Kudos [?]: 76 [0], given: 0

if 2^x - 2^x-2 = 3(2^13), what is thevalue of x? a. 9 b [#permalink]

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22 Aug 2006, 12:27
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if 2^x - 2^x-2 = 3(2^13), what is thevalue of x?

a. 9
b 11
c13
d 15
e 17

Kudos [?]: 76 [0], given: 0

Manager
Joined: 25 Jul 2006
Posts: 99

Kudos [?]: 13 [0], given: 0

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22 Aug 2006, 12:34
2^x (1-1/4) = 3* 2^13
2^x *3/4 = 3* 2^13
x= 13+2 =15

Kudos [?]: 13 [0], given: 0

22 Aug 2006, 12:34
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