Question:
Alex and Billy had d stamps each at first. Alex lost 48 stamps. Billy received 130 stamps from his mother. They had 934 stamps altogether in the end.
(a) How many stamps did Alex have in the end? Express your answer in terms of d.
(b) How many stamps did each of them have at first?
Solution:
![P6 / Nan Hua / 2020 / SA2 Prelims / Paper 1 – Q29 [2 marks]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2022/02/P6_SA2_2020_Nan_Hua_Paper1_Q29-Qns.jpg?resize=400%2C260&ssl=1)