Question 1086728
<pre>  
{{{x^2-(3/x)x=7/16}}}

Just cancel the x's

{{{x^2-(3/cross(x))cross(x)=7/16}}}

{{{x^2-3=7/16}}}

Multiply through by 16

{{{16x^2-48=7}}}

{{{16x^2=55}}}

{{{x^2=55/16}}}

{{{x="" +- sqrt(55)/4}}}

Edwin</pre>