<PRE><B>Question 193052</B>
Assume the problem is:
{{{7/Y}}} - {{{1/3}}} = {{{1/4}}}
If we multiply the equation by 12y, we can get rid of the denominators
12y*{{{7/Y}}} - 12y*{{{1/3}}} = 12y*{{{1/4}}}
Cancel out the denominators and you have
12(7) - 4y = 3y
:
84 = 3y + 4y
:
84 = 7y
y = {{{84/7}}}
y = 12
:
:
Check solution in original problem
{{{7/12}}} - {{{1/3}}} = {{{1/4}}}
{{{7/12}}} - {{{4/12}}} = {{{3/12}}}</PRE>