There are several chickens and rabbits, the total number of legs is 8 times more than the total number of heads, and the number of chickens is 5 times less than the number of rabbits 4 times 19. Question: How many chickens and rabbits are there altogether?
有鸡和兔子若干只，它们的总腿数比总头的3倍多8，而鸡的只数的5倍比兔的只数的4倍少19．问：鸡和兔子一共有多少只？
<gadget id="calculator">19 / 4</gadget>
<output>19/4 = around 4.75</output>

<gadget id="calculator">3 * (19/4)</gadget>
<output>57/4 = around 14.25</output>

<gadget id="calculator">(19/4) * 4</gadget>
<output>19</output>

<gadget id="calculator">8 - 19</gadget>
<output>-11</output>

<gadget id="calculator">(57/4) + (-11)</gadget>
<output>13/4 = around 3.25</output>

<gadget id="calculator">5 / 4</gadget>
<output>5/4 = around 1.25</output>

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

<gadget id="calculator">3 * (5/4)</gadget>
<output>15/4 = around 3.75</output>

<gadget id="calculator">5 - 3 - (15/4)</gadget>
<output>-7/4 = around -1.75</output>

<gadget id="calculator">2 + (-7/4)</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(13/4) / (1/4)</gadget>
<output>13</output>

<gadget id="calculator">13 * 5</gadget>
<output>65</output>

<gadget id="calculator">65 + 19</gadget>
<output>84</output>

<gadget id="calculator">84 / 4</gadget>
<output>21</output>

<gadget id="calculator">21 + 13</gadget>
<output>34</output>

<result>34</result>