A professional duck raising household raises 43 black ducks and twice as many white ducks as black ducks. How many ducks are raised in total?
某养鸭专业户养黑鸭43只，养白鸭是黑鸭的2倍，一共养鸭多少只？
<gadget id="calculator">43 * 2</gadget>
<output>86</output>

<gadget id="calculator">43 + 86</gadget>
<output>129</output>

<result>129</result>