The SUM of two numbers is 48 and their difference is 12. What are the two numbers?

The sum of two numbers is 48 and their difference is 12. What are the two numbers? A. 15,36 B. 12,40 C. 30,18 D. 60,12 E. None of these More Examples: 1. https://youtu.be/x_Ljr3aXaw8 2. https://youtu.be/MZ5SJTIRsA0 3. https://youtu.be/CGwBNulCIXs 4. https://youtu.be/t4WDog2q5rQ 5. https://youtu.be/ySCHdV5NaZ8 Paano Mag SELF REVIEW | Sekreto para PUMASA: 1. https://youtu.be/cY9WMaMmaKk 2. https://youtu.be/SiZFsdcvSqw You can SHARE the LINK of my videos but DO NOT re-upload. FB Page: Free Civil Service Reviewers managed by Leonalyn https://www.facebook.com/LeonalynMutiaTayoneFreeReviewers/ FB Group: Philippine Civil Service Review for all https://www.facebook.com/groups/121644125187853/?ref=share Behind the scene: https://youtu.be/qJgEzWnDp_8 Editing Apps: VivaVideo SamsungNote5: Snote Back-up: SamsungNote9 Solving Math Problems for: AFPSAT MATH CIVIL SERVICE EXAM UPCAT LET PNPACAT PMA NCAE