The younger brother weighs 30 kilograms, and the older brother's weight is 4 kilograms more than twice that of the younger brother. How much does the older brother weigh?
弟弟体重30千克，哥哥的体重比弟弟的2倍多4千克，哥哥有多重？
<gadget id="calculator">30 * 2</gadget>
<output>60</output>

<gadget id="calculator">60 + 4</gadget>
<output>64</output>

<result>64</result>