Seven times a number is 0.06 more than three times 0.72. What is this number?
一个数的7倍比0.72的3倍多0.06．这个数是多少？
<gadget id="calculator">0.72 * 3</gadget>
<output>2.16</output>

<gadget id="calculator">2.16 + 0.06</gadget>
<output>2.22</output>

<gadget id="calculator">2.22 / 7</gadget>
<output>0.317143</output>

<result>0.317143</result>