Question 29907
Let n = the number.

{{{(5/6)n - (1/2)n = 6}}} Simplify.
{{{n((5/6) - (3/6)) = 6}}}
{{{n(2/6) = 6}}}
{{{n(1/3) = 6}}} Multiply both sides by 3.
{{{n = 18}}}