Suning Appliance sold washing machines, half of the total was sold in the morning, and 20 units were sold in the afternoon, and 105 units remained. How many washing machines did Suning Appliance have?
苏宁电器出售洗衣机，上午售出总数的一半多20台，下午售出余下的一半少20台，结果还余105台，苏宁电器原有洗衣机多少台？
<gadget id="calculator">105 - 20</gadget>
<output>85</output>

<gadget id="calculator">85 * 2</gadget>
<output>170</output>

<gadget id="calculator">170 + 20</gadget>
<output>190</output>

<gadget id="calculator">190 * 2</gadget>
<output>380</output>

<result>380</result>