SOLUTION: who am I, my reciprocal is half my value?

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Question 915869: who am I, my reciprocal is half my value?
Answer by Edwin McCravy(20081) About Me  (Show Source):
You can put this solution on YOUR website!
1%2Fx%22%22=%22%22expr%281%2F2%29x

Multiply both sides by LCD = 2x

2x%2Aexpr%281%2Fx%29%22%22=%22%222x%2Aexpr%281%2F2%29x

2cross%28x%29%2Aexpr%281%2Fcross%28x%29%29%22%22=%22%22cross%282%29x%2Aexpr%281%2Fcross%282%29%29x

2%22%22=%22%22x%5E2

%22%22%2B-sqrt%282%29%22%22=%22%22x

Edwin