Hey! I'm struggling with this question. I need to know how long she must invest her money in order to have $1000 by using the equation in the picture. Thank you!

4. Trinh has decided to save money to buy a new computer. She invests $800 in an account that earns 5% per year, compounded quarterly. Algebraically determine how long she needs to invest her money to have $1000 by using the equation 1000 0 800(1.0125)", where n is measured in quarters of a year (three-month increments)