9 times a number is equal to 6 times this number plus 27, what is this number?
一个数的9倍，等于这个数的6倍加上27，这个数是几？
<gadget id="calculator">9 - 6</gadget>
<output>3</output>

<gadget id="calculator">27 / 3</gadget>
<output>9</output>

<result>9</result>