When x=3, y=6, what is the value of 5x-2y
当x=3，y=6，时，5x-2y的值是多少
<gadget id="calculator">5 * 3</gadget>
<output>15</output>

<gadget id="calculator">2 * 6</gadget>
<output>12</output>

<gadget id="calculator">15 - 12</gadget>
<output>3</output>

<result>3</result>