+589 Find all $x$ such that\[\dfrac{1}{2} + \dfrac{1}{x} = \dfrac{5}{6}.\]
+589 Subtracting 1/2 from both sides of the equation givesTaking the reciprocal of both sides of gives .
\[\frac1x = \frac56-\frac12 = \frac13. \]
Taking the reciprocal of both sides of 1/x=1/3 gives x= 3
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