When the value of x is what, the value of 5x+0.2 is 0.6.
当x的值为多少时，5x+0.2的值为0.6．
<gadget id="calculator">0.6 - 0.2</gadget>
<output>0.4</output>

<gadget id="calculator">0.4 / 5</gadget>
<output>0.08</output>

<result>0.08</result>