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

### Instruction:
Jeff is collecting matchbox cars. He has twice as many cars as trucks. He has 60 total vehicles. How many trucks does he have?

### Response:
Let x represent the number of trucks
Cars:2x
Total:x+2x=60
3x=60
x=<<20=20>>20
#### 20