Question 957730
The text used in your composition field has spacings that suggest you mean, x=sqrt(x+13)+7
OR
{{{x=sqrt(x+13)+7}}} with the rendering tags.


{{{x-7=sqrt(x+13)}}}
{{{(x-7)^2=x+13}}}
{{{x^2-14x+49=x+13}}}
{{{x^2-15x+49-13=0}}}
{{{x^2-15x+36=0}}}
{{{(x-12)(x-3)=0}}}