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

### Instruction:
In a court-mandated traffic class, there are a certain number of drunk drivers and 3 less than 7 times that many speeders. If there are 45 students total, how many drunk drivers are there?

### Response:
 Hebu tuchukue d kuwa idadi ya madereva walevi na s kuwa idadi ya madereva wanaovunja sheria za kasi. Tunajua kwamba d + s = 45 na s = 7d - 3.
Kwa kubadilisha equation ya pili katika equation ya kwanza, tunapata d + 7d - 3 = 45
Kwa kuongeza 4 kwa pande zote mbili, tunapata 8d = 48
Kwa kugawanya pande zote mbili kwa 8, tunapata d = 6