SOLUTION:

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Question 14464:
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
%282x-1%29%5E%281%2F3%29+-+3+=+0 Add 3 to both sides.
%282x-1%29%5E%281%2F3%29+=+3 Cube both sides.
2x-1+=+27 Add 1 to both sides.
2x+=+28 Divide both sides by 2.
x+=+14