3.5 times of x is exactly half of 14, find x.
x的3.5倍刚好是14的一半，求x．
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">14 * (1/2)</gadget>
<output>7</output>

<gadget id="calculator">7 / 3.5</gadget>
<output>2</output>

<result>2</result>