In mathematics, addition and subtraction are inverse properties. 
 Therefore, any number can be equal to zero if the same number is subtracted. 
 We have then: 
 a - a = 0 
 We can write this subtraction as the sum of two numbers by using the inverse property of the sum. 
 We have then: 
 a + (-a) = 0 
 Answer: 
 The following statement shows the inverse property of addition: 
 A) a + (-a)