Question 258847
Could you please re-state your problem and don't be shy with the parentheses?
It will make it much clearer.
{{{1/(6(x+12)+1)=x/3}}}
{{{1/(6(x+12))+1=x/3}}}
{{{(1/6)(x+12)+1=x/3}}}

I'm not sure which of these 3 equations you're trying to solve.