Subtract the product of x and 2 from 30, the difference is 14, find 2, the correct solution is x=how much
从30里减去x与2的积，差是14，求2，正确的解是x=多少
<gadget id="calculator">14 + 2</gadget>
<output>16</output>

<gadget id="calculator">16 / 2</gadget>
<output>8</output>

<result>8</result>