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

### Instruction:
Eduardo is a teacher. He taught 3 classes last week while his colleague Frankie taught double what Eduardo teaches. How many classes did Eduardo and Frankie teach in total?

### Response:
 ฟรางกี้สอน 3 * 2 = <<3*2=6>>6 ชั่วโมง
เอดูอาร์โด้และฟรางกี้สอนทั้งหมด 3 + 6 = <<3+6=9>>9 ชั่วโมงทั้งหมด