The number of A is twice the number of B, and the number of A is 12 more than the number of B. What is the sum of the two numbers of A and B?
甲数的于乙数的2倍，甲数比乙数多12，甲乙两数的和是多少．
<gadget id="calculator">2 - 1</gadget>
<output>1</output>

<gadget id="calculator">12 / 1</gadget>
<output>12</output>

<gadget id="calculator">2 * 12</gadget>
<output>24</output>

<gadget id="calculator">24 + 12</gadget>
<output>36</output>

<result>36</result>