When x=3, y=5, what is the value of 3x+2y
当x=3，y=5时，3x+2y的值为多少
<gadget id="calculator">3 * 3</gadget>
<output>9</output>

<gadget id="calculator">2 * 5</gadget>
<output>10</output>

<gadget id="calculator">9 + 10</gadget>
<output>19</output>

<result>19</result>