Given the following system of equations, Jessica finds the y=1. Which equation models how to correctly find the x-value?
3= y +3
x + y = 5

Dakota earned $7.50 in interest in account a and $18.75 in interest in account b after 15 months. if the simple interest rate is 4% for account a and 5% for account b, which account has the greater principal? explain. to make it a little easier, there is an image. good luck!