PLZ help!! Write a system of equations to describe the situation below, solve using substitution, and fill in the blanks.

Elena is looking for a job cutting hair. One option is self-employment at The Newport Salon, where she would pay $835 per month to rent a station and keep all of her earnings. Another option is to work at a franchise, where she would just have to pay the salon $5 for every haircut. If she performed a certain number of haircuts every month, the amount paid to either salon would be the same. How much would Elena pay? How many haircuts would that be?