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

### Instruction:
 Michael has two brothers. His oldest brother is 1 year older than twice Michael's age when Michael was a year younger. His younger brother is 5 years old, which is a third of the age of the older brother. What is their combined age?


### Response:
 Der älteste Bruder ist 13, weil 5 x 3 = 15.
Michael ist 8, weil wenn 1 + (Michaels Alter - 1) x 2 = 13, dann Michaels Alter = 8.
Ihr kombiniertes Alter beträgt 26, weil 5 + 8 + 15 = 28.