Question

Please show work!

Answer 1

22+15= 37
37+37= 74
74-15=59
59-37=22

Dan= 74
Cam= 37

Answer 2

Let D be the number of stickers Dan has and C be the number of stickers Cam has
D=2C
D-15=C+15+22(because Dan will still have 22 more stickers after he gives Cam 15 of his, meaning Cam gains 15, Dan looses 15)
Thus D-15=C+37, D=52+C
Since D=2C, 2C=52+C
Thus Cam has 52 stickers and Dan has 104 stickers(because D=2C=2(52))