Chapter 30, Problem 51P

A government starts off with a total debt of $\text{\$3}.\text{5}$ billion. In year one, the government runs a deficit of $\$\text{4}00$ million. In year two, the government runs a deficit of $\$\text{1}$ billion. In year three, the government runs a surplus of $\$\text{2}00$ million. What is the total debt of the government at the end of year three?