The fruit shop sells 320 kilograms of apples, and the weight of peaches sold is 80 grams less than three times that of apples. How many kilograms of the two fruits are sold together?
水果店卖出苹果320千克，卖出桃子的重量比苹果的3倍少80克．两种水果共卖出多少千克？
<gadget id="calculator">320 * 3</gadget>
<output>960</output>

<gadget id="calculator">960 - 80</gadget>
<output>880</output>

<gadget id="calculator">880 + 320</gadget>
<output>1_200</output>

<result>1_200</result>