The sum of two numbers is 98. Their difference is 22. Write a system of equations that describes this situation. Solve by elimination to find the two numbers.



a.x + y = 98
x – y = 22
55 and 33

c.x – y = 98
x + y = 22
59 and 39

b.x + y = 98
x – y = 22
60 and 38

d.x + y = 22
y – x = 98
55 and 39