Add 61 to 3 times a number to get 76. What is this number?
一个数的3倍加上61得76，这个数是多少？
<gadget id="calculator">76 - 61</gadget>
<output>15</output>

<gadget id="calculator">15 / 3</gadget>
<output>5</output>

<result>5</result>