Multiply a number by 3, add 96, the sum is 97.5, find this number.
一个数乘以3的积，加上96，和是97.5，求这个数．
<gadget id="calculator">97.5 - 96</gadget>
<output>1.5</output>

<gadget id="calculator">1.5 / 3</gadget>
<output>0.5</output>

<result>0.5</result>