At the start, Jeremy had two times more money than the price of the computer, which means he had 2 * 3000 = $<<2*3000=6000>>6000.
The cost of the accessories stands at 3000 * 1/10 = $<<3000*1/10=300>>300.
This leaves Jeremy with 6000 - 3000 - 300 = $<<6000-3000-300=2700>>2700.
#### 2700