Question

The sum of two integers is 9. Their difference is 5. What are the two integers?

(A) 7 and 12
(B) -7 and 16
(C) -12 and -7
(D) 2 and 7​

Answer 1

D) 2 and 7

Explanation:

x+y=9

x-y=5

----------

2x=14

x=14/2=7

7+y=9

y=9-7=2