Xiaojun's father bought a computer and a repeater. The price of a repeater is 280 yuan, and the price of a computer is 20 yuan less than 20 times that of a repeater. How much did it cost to buy a computer and a repeater?
小军的爸爸买了一台电脑和一部复读机，一部复读机的价格是280元，一台电脑的价格比一部复读机的20倍少20元．买一台电脑和一部复读机一共花了多少元？
<gadget id="calculator">280 * 20</gadget>
<output>5_600</output>

<gadget id="calculator">5_600 - 20</gadget>
<output>5_580</output>

<gadget id="calculator">5_580 + 280</gadget>
<output>5_860</output>

<result>5_860</result>