Below is an instruction that describes a task. Write a response that appropriately completes the request in Chinese. Please answer in Chinese.

### Instruction:
 Geric比Kyla多两倍的钞票，而Kyla比Jessa少2张钞票。在给Geric 3张钞票后，Jessa还剩7张。Geric一开始有多少张钞票？


### Response:
 Jessa在给Geric 3张钞票之前有7 + 3 = <<7+3=10>>10张钞票。
Kyla有10 - 2 = <<10-2=8>>8张钞票。
所以，Geric一开始有8 x 2 = <<8*2=16>>16张钞票。