Question 341204
 1    1       1
-  =  -  +    -
y    56.1    15.3
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(1/y) = (15.3+56.1)/(56.1*15.3)
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1/y = 71.4/(858.330)
y = (858.33/71.4)
y = 12.0214
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Cheers,
Stan H.