At the local fast food restaurant, the number of fries sold in one day was six less than three times the number of burgers. If there were 120 orders of fries sold, how many burgers were sold?

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square