When x=how much, the value of 8x-5 happens to be the smallest prime number.
当x=多少时，8x-5的值恰好是最小的质数．
<gadget id="calculator">2 + 5</gadget>
<output>7</output>

<gadget id="calculator">7 / 8</gadget>
<output>7/8 = around 0.875</output>

<result>7/8 = around 0.875</result>