There are 50 monkeys in the zoo, which is 4 less than twice the number of peacocks. How many peacocks are there in the zoo? (solution with equation)
动物园里有猴子50只，比孔雀的2倍少4只，动物园里有孔雀多少只？(用方程解答)
<gadget id="calculator">50 + 4</gadget>
<output>54</output>

<gadget id="calculator">54 / 2</gadget>
<output>27</output>

<result>27</result>