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

### Instruction:
When Jayson is 10 his dad is four times his age and his mom is 2 years younger than his dad.  How old was Jayson's mom when he was born?

### Response:
When Jayson is 10 his dad is 10 x 4 = <<10*4=40>>40 years old.
His mom is 40 - 2 = <<40-2=38>>38 years old.
When Jayson is born, his mom is 28 years old.
#### 28