Write and solve the equation, and then check your answer. The sum of two and two tenths and a number is five.

Which statements are correct? Check all that apply.

A. The word “sum” means the result of adding two numbers.
B. The correct equation is n – 2.2 = 5.
C. The correct equation is n + 2.2 = 5.
D. The solution of the equation is n = 7.2.
E. The solution of the equation is n = 2.8.
F. Check the solution by substituting the value for n and simplifying.