SOLUTION: If 4×+4×+4×+4×+4×+4×+4×=1/512,then what is the value of -3/×

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Question 706607: If 4×+4×+4×+4×+4×+4×+4×=1/512,then what is the value of -3/×
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!
If 4x%2B4x%2B4x%2B4x%2B4x%2B4x%2B4x=1%2F512
28x=1%2F512

x=%281%2F512%29%2F28

x=1%2F%28512%2A28%29

x=1%2F14336,then what is the value of -3%2Fx is

-3%2Fx
= -3%2F%281%2F14336%29

=-3%2A14336

=-43008