Add 8 to a number, multiply it by 6, and subtract 20 to get 58. What is this number?
一个数加上8，然后乘6，再减去20等于58，这个数是多少？
<gadget id="calculator">58 + 20</gadget>
<output>78</output>

<gadget id="calculator">78 / 6</gadget>
<output>13</output>

<gadget id="calculator">13 - 8</gadget>
<output>5</output>

<result>5</result>