You can put this solution on YOUR website! X-7/5-5.2=x+9/10 IF THE X & x ARE THE SAME THERE IS NO SOLUTION.
ALSO THE SUM OF 2 NEGATIVE NUMBERS DON'T EQUAL A POSITIVE NUMBER
IF THE X & THE x ARE DIFFERENT TERE STILL IS NO UNIQUE SOLUTION BECAUSE YOU HAVE TWO UNKNOWNS IN ONE EQUATION.