Sarah and Shiyun have some macarons each. If Sarah gives Shiyun 33 macarons, Sarah will have ¹₂ as many macarons as Shiyun. If Sarah gives Shiyun 4 macarons, they will have an equal number of macarons. How many macarons does Shiyun have at first?

	Case 1		Case 2
	Sarah	Shiyun	Sarah	Shiyun
Before	1 u + 33	2 u - 33	1.5 u + 4	1.5 u - 4
Change	- 33	+ 33	- 4	+ 4
After	1 u	2 u	1.5 u	1.5 u

Total number of macarons that Sarah and Shiyun have
= 1 u + 2 u
= 3 u 

Number of macarons that Sarah and Shiyun each has in the end is the same.

Number of macarons that Sarah and Shiyun each has in the end in Case 2
= 3 u ÷ 2
= 1.5 u

Number of macarons that Sarah had at first is the same in Case 1 and Case 2.

1.5 u + 4 = 1 u + 33
1.5 u - 1 u = 33 - 4
0.5 u = 29

1 u = 29 ÷ 0.5 = 58

Number of macarons that Shiyun has
= 2 u - 33
= 2 x 58 - 33
= 116 - 33
= 83

Answer(s): 83