Question 783848
I do not see the relation to physics, and I am not sure how to interpret the equation, but I'll try two possible interpretations.
 
{{{(33/7)x + 13 = 23}}} --> {{{(33/7)x = 23-13}}} --> {{{(33/7)x = 10}}} --> {{{(7/33)(33/7)x =(7/33)10}}} --> {{{x = 70/33}}}
 
{{{33/"7 x" + 13 = 23}}} --> {{{33/"7 x" = 23-13}}} --> {{{33/"7 x" = 10}}} --> {{{7x(33/"7 x")=7x*10}}} --> {{{33=70x}}} --> {{{33/70=70x/70}}} --> {{{33/70=x}}}