A number plus 2, minus 3, multiplied by 4, divided by 5 equals 12, what is this number?
一个数加上2，减去3，乘以4，除以5等于12，这个数是多少．
<gadget id="calculator">5 / 4</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">12 * (5/4)</gadget>
<output>15</output>

<gadget id="calculator">3 - 2</gadget>
<output>1</output>

<gadget id="calculator">15 + 1</gadget>
<output>16</output>

<result>16</result>