There is a one-digit decimal. If the decimal point is removed, the resulting decimal is 58.5 more than the original number. What is the one-digit decimal?
现有一个一位小数，若去小掉它的小数点，得到的小数比原数多58.5，这个一位小数是多少？
<gadget id="calculator">10 - 1</gadget>
<output>9</output>

<gadget id="calculator">58.5 / 9</gadget>
<output>6.5</output>

<result>6.5</result>