<PRE><B>Question 1106564</B>
Given {{{y = 1/(4x) + 2/9}}}

Bring the 2/9 term over to the other side of the equation:

{{{y - 2/9 = 1/(4x)}}}

Put the LHS over a common denominator:

{{{(9y - 2)/9 = 1/(4x)}}}

Invert both sides of the equation:

{{{9/(9y - 2)/9 = 4x}}}

Can you take it from there?</PRE>