1.2 times the difference of a number minus 0.6 is 66.42 less than 3 times the number. Find this number?
一个数减去0.6的差的1.2倍比这个数的3倍少66.42，求这个数？
<gadget id="calculator">1.2 * 0.6</gadget>
<output>0.72</output>

<gadget id="calculator">66.42 - 0.72</gadget>
<output>65.7</output>

<gadget id="calculator">3 - 1.2</gadget>
<output>1.8</output>

<gadget id="calculator">65.7 / 1.8</gadget>
<output>36.5</output>

<result>36.5</result>