Jonway Supermarket sold 52 computers over the weekend, and the remaining ones were 18 less than the number sold. How many computers were there?
永源超市周末卖出52台电脑，剩下的比卖出的少18台．原来有多少台电脑？
<gadget id="calculator">52 - 18</gadget>
<output>34</output>

<gadget id="calculator">34 + 52</gadget>
<output>86</output>

<result>86</result>