x^-1/11=1/2 how to solve this

x^-1 is 1/x, so you have 1/(11x) = 1/2

 

Turn both sides upside down to get  11x = 2

 

Divide both sides by 11

x = 2/11

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Fallow this

https://docs.google.com/file/d/0ByGDPITeOMOPR0VUUHZzRW0yc2M/edit?usp=docslist_api

This might help too

http://web2.0calc.com/questions/indices-especially-negative-indices