Mia currently has 10 email subscribers to her blog and gains an average of 10 new subscribers per day. Julie currently has 100 email subscribers to her blog and loses an average of 5 email subscribers per day. Use this information to answer questions 7-10.

Write an equation to represent y , the total number of subscribers after x days for each girl

Mia :
julie :

what is the solution to the system of equations ?​