The motor factory produces a batch of motors, the qualified rate is 98.5%, and there are 6790 more qualified motors than unqualified motors. How many qualified motors are there in this batch of factory products?
电机厂生产一批电机，合格率是98.5%，合格电机比不合格电机多6790台．这批厂品合格电机有多少台？
<gadget id="calculator">98.5 / 100</gadget>
<output>0.985</output>

<gadget id="calculator">1 - 0.985</gadget>
<output>0.015</output>

<gadget id="calculator">0.985 - 0.015</gadget>
<output>0.97</output>

<gadget id="calculator">6_790 / 0.97</gadget>
<output>7_000</output>

<gadget id="calculator">7_000 * 0.985</gadget>
<output>6_895</output>

<result>6_895</result>