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OpenStudy (anonymous):
Solve the following exponential equation. Please show all of your work. 2^(4x-7)=128
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OpenStudy (rulnick):
4x-7 = log_2 128 4x - 7 = 7 4x = 14 x = 14/4 x= 7/2 done :)
OpenStudy (anonymous):
Thanx!
OpenStudy (rulnick):
welcome.
OpenStudy (anonymous):
2^(4x-7)= 2^7 ->4x -7 = 7 => x = 14/4 = 7/2
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